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Goyal VK, Pandey SK, Benade V, Shinde AK, Rasheed MA, Badange RK, Palacharla VRC, Ravulu J, Jetta S, Subramanian R, Nirogi R. Effect of Concurrent Use of Memantine on The Efficacy of Masupirdine (SUVN‐502): A
Post‐hoc
Analysis of a Phase‐2 Randomized Placebo‐Controlled Study. Alzheimers Dement 2022. [DOI: 10.1002/alz.062688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Grandhi VR, Ganuga N, Medapati RB, Tadiparthi J, Jayarajan P, Shinde AK, Badange RK, Nirogi R. SUVN‐I7016031: A Novel M
1
‐receptor Positive Allosteric Modulator (M
1
‐PAM) for the treatment of Parkinson's Disease Associated Dementia. Alzheimers Dement 2022. [DOI: 10.1002/alz.062698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Nirogi R, Jayarajan P, Abraham R, Tadiparthi J, Benade V, Shinde AK, Rasheed MA, Badange RK, Goyal VK, Palacharla VRC, Ravulu J, Jetta S, Subramanian R. Effects of Masupirdine (SUVN‐502) on Agitation/Aggression and Psychosis in Patients with Probable Alzheimer’s Disease: A Post Hoc Analysis. Alzheimers Dement 2022. [DOI: 10.1002/alz.062695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Nirogi R, Jayarajan P, Tadiparthi J, Shinde AK, Rasheed MA, Goyal VK, Bhyrapuneni G, Benade V, Palacharla VRC, Ravula J, Jetta S. Masupirdine (SUVN‐502): A promising clinical candidate for the management of agitation in Alzheimer’s dementia. Alzheimers Dement 2021. [DOI: 10.1002/alz.051571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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5
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Nirogi R, Shinde AK, Benade V, Subramanian R, Bhyrapuneni G, Ravulu J, Jetta S, Rasheed MA, Badange RK, Jasti V. Masupirdine (SUVN‐502) in combination with donepezil and memantine in moderate Alzheimer's disease: Effect of AD duration since diagnosis and patient’s age on efficacy endpoints. Alzheimers Dement 2020. [DOI: 10.1002/alz.039283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Nirogi R, Jayarajan P, Shinde AK, Abraham R, Goyal VK, Benade V, Ravulu J, Jasti V. Masupirdine (SUVN‐502): Novel treatment option for the management of behavioral and psychological symptoms in patients with Alzheimer’s disease. Alzheimers Dement 2020. [DOI: 10.1002/alz.039303] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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7
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Nirogi R, Bhyrapuneni G, Muddana NR, Manoharan A, Shinde AK, Mohammed AR, Padala NP, Ajjala DR, Subramanian R, Palacharla VRC. Absorption, distribution, metabolism, excretion (ADME), drug-drug interaction potential and prediction of human pharmacokinetics of SUVN-G3031, a novel histamine 3 receptor (H3R) inverse agonist in clinical development for the treatment of narcolepsy. Eur J Pharm Sci 2020; 152:105425. [DOI: 10.1016/j.ejps.2020.105425] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 05/22/2020] [Accepted: 06/09/2020] [Indexed: 01/26/2023]
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8
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Nirogi R, Mohammed AR, Shinde AK, Ravella SR, Bogaraju N, Subramanian R, Mekala VR, Palacharla RC, Muddana N, Thentu JB, Bhyrapuneni G, Abraham R, Jasti V. Discovery and Development of 3-(6-Chloropyridine-3-yloxymethyl)-2-azabicyclo[3.1.0]hexane Hydrochloride (SUVN-911): A Novel, Potent, Selective, and Orally Active Neuronal Nicotinic Acetylcholine α4β2 Receptor Antagonist for the Treatment of Depression. J Med Chem 2020; 63:2833-2853. [PMID: 32026697 DOI: 10.1021/acs.jmedchem.9b00790] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A series of chemical optimizations guided by in vitro affinity at the α4β2 receptor in combination with selectivity against the α3β4 receptor, pharmacokinetic evaluation, and in vivo efficacy in a forced swim test resulted in identification of 3-(6-chloropyridine-3-yloxymethyl)-2-azabicyclo[3.1.0]hexane hydrochloride (9h, SUVN-911) as a clinical candidate. Compound 9h is a potent α4β2 receptor ligand with a Ki value of 1.5 nM. It showed >10 μM binding affinity toward the ganglionic α3β4 receptor apart from showing selectivity over 70 other targets. It is orally bioavailable and showed good brain penetration in rats. Marked antidepressant activity and dose-dependent receptor occupancy in rats support its potential therapeutic utility in the treatment of depression. It does not affect the locomotor activity at doses several folds higher than its efficacy dose. It is devoid of cardiovascular and gastrointestinal side effects. Successful long-term safety studies in animals and phase-1 evaluation in healthy humans for safety, tolerability, and pharmacokinetics paved the way for its further development.
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Affiliation(s)
- Ramakrishna Nirogi
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Abdul Rasheed Mohammed
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Anil K Shinde
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Srinivasa Rao Ravella
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Narsimha Bogaraju
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Ramkumar Subramanian
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Venkat Reddy Mekala
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Raghava Choudary Palacharla
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Nageswararao Muddana
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Jagadeesh Babu Thentu
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Gopinadh Bhyrapuneni
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Renny Abraham
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Venkat Jasti
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
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Shinde AK. l-Asparaginase: aspiring for better outcomes in endometrial cancer. BJOG 2018; 125:1704. [PMID: 30222230 DOI: 10.1111/1471-0528.15472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- A K Shinde
- Department of Obstetrics and Gynaecology, Khoula Hospital, Muscat, Oman
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Bhyrapuneni G, Daripelli S, Kamuju V, Benade V, Irappanavar SM, Gandipudi S, Tirumalasetty C, Petlu S, Subramanian R, Jayarajan P, Shinde AK, Nirogi R. P3‐273: NEUROCHEMICAL AND ELECTROPHYSIOLOGICAL CHARACTERIZATION OF SUVN‐I6107, A NOVEL MUSCARINIC M1 RECEPTOR POSITIVE ALLOSTERIC MODULATOR. Alzheimers Dement 2018. [DOI: 10.1016/j.jalz.2018.06.1633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Nirogi R, Mohammed AR, Shinde AK, Gagginapally SR, Kancharla DM, Middekadi VR, Bogaraju N, Ravella SR, Singh P, Birangal SR, Subramanian R, Palacharla RC, Benade V, Muddana N, Jayarajan P. Synthesis, Structure-Activity Relationships, and Preclinical Evaluation of Heteroaromatic Amides and 1,3,4-Oxadiazole Derivatives as 5-HT 4 Receptor Partial Agonists. J Med Chem 2018; 61:4993-5008. [PMID: 29763304 DOI: 10.1021/acs.jmedchem.8b00457] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder that has a higher prevalence and incidence in people older than 60 years. The need for improved AD therapies is unmet as the current therapies are symptomatic with modest efficacy. Partial agonists of the 5-HT4 receptor (5-HT4R) offer both symptomatic and disease-modifying treatments as they shift amyloid-precursor-protein (APP) processing from the amyloidogenic pathway to the nonamyloidogenic pathway by activating the α-secretase enzyme. In addition, they also offer symptomatic treatment by increasing levels of the neurotransmitter acetylcholine in the brain. Because of this fascinating dual mechanism of action, several chemical scaffolds having 5-HT4R pharmacophores were designed and evaluated. Most of the synthesized compounds showed potent in vitro affinities and in vivo efficacies. Upon analysis of focused structure-activity relationships, compound 4o was identified as a potent 5-HT4R partial agonist with favorable ADME properties and good in vivo efficacy. GR-125487, a selective 5-HT4R antagonist, attenuated the activity of compound 4o in the novel-object-recognition-test cognition model.
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Affiliation(s)
- Ramakrishna Nirogi
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Abdul Rasheed Mohammed
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Anil K Shinde
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Shankar Reddy Gagginapally
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Durga Malleshwari Kancharla
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Vanaja Reddy Middekadi
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Narsimha Bogaraju
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Srinivasa Rao Ravella
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Pooja Singh
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Sumit Raosaheb Birangal
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Ramkumar Subramanian
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Raghava Choudary Palacharla
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Vijay Benade
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Nageswararao Muddana
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Pradeep Jayarajan
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
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12
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Nirogi R, Mudigonda K, Ravulu J, Bhyrapuneni G, Benade V, Muddana NR, Chowdary Palacharla VR, Ajjala DR, Goyal VK, Pandey SK, Abraham R, Jayarajan P, Kambhampati R, Shinde AK. [P2–033]: SUVN‐502 + DONEPEZIL + MEMANTINE (TRIPLE COMBINATION) REPRESENTS A PROMISING NEW APPROACH FOR SYMPTOMATIC TREATMENT OF ALZHEIMER's DISEASE. Alzheimers Dement 2017. [DOI: 10.1016/j.jalz.2017.06.681] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Bhyrapuneni G, Mudigonda K, Penta KK, Chowdary Palacharla VR, Muddana N, Jayarajan P, Abraham R, Subramanian R, Goyal VK, Pandey SK, Boggavarapu RK, Shinde AK, Nirogi R. P2‐026: SUVN‐G3031, a Potent and Selective H3 Receptor Inverse Agonist: Safety, Tolerability and Pharmacokinetics in Humans. Alzheimers Dement 2016. [DOI: 10.1016/j.jalz.2016.06.1230] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Nirogi R, Mudigonda K, Penta KK, Bhyrapuneni G, Benade V, Muddana N, Chowdary Palacharla VR, Ajjala DR, Goyal VK, Pandey SK, Abraham R, Jayarajan P, Kambhampati R, Shinde AK. P1‐085: SUVN‐502, Potent and Pure 5‐HT
6
Receptor Antagonist: Proof‐of‐Concept Study Design in Moderate Alzheimer’s Disease Patients. Alzheimers Dement 2016. [DOI: 10.1016/j.jalz.2016.06.833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Abraham R, Shinde AK, Goyal VK, Pandey SK, Medapati RB, Yathavakilla S, Tadiparthi J, Edula S, Subramanian R, Mekala VR, Muddana N, Uthukam V, Daripelli S, Devarapalli B, Eeda R, Nirogi R. P3‐135: SUVN‐I4035 ‐ Preclinical Characterization of Novel Muscarinic M1 Positive Allosteric Modulator. Alzheimers Dement 2016. [DOI: 10.1016/j.jalz.2016.06.1794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Nirogi R, Gagginapally SR, Shinde AK, Mohammed AR. Synthesis of GR 125487, a selective 5-HT 4 receptor antagonist. SYNTHETIC COMMUN 2016. [DOI: 10.1080/00397911.2016.1178297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
| | | | - Anil K. Shinde
- Discovery Research, Suven Life Sciences Ltd., Hyderabad, India
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17
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Nirogi R, Mohammed AR, Shinde AK, Bogaraju N, Gagginapalli SR, Ravella SR, Kota L, Bhyrapuneni G, Muddana NR, Benade V, Palacharla RC, Jayarajan P, Subramanian R, Goyal VK. Synthesis and SAR of Imidazo[1,5-a]pyridine derivatives as 5-HT4 receptor partial agonists for the treatment of cognitive disorders associated with Alzheimer's disease. Eur J Med Chem 2015; 103:289-301. [PMID: 26363507 DOI: 10.1016/j.ejmech.2015.08.051] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 08/25/2015] [Accepted: 08/26/2015] [Indexed: 11/16/2022]
Abstract
Alzheimer's disease (AD) is a neurodegenerative disease which has a higher prevalence and incidence in older people. The need for improved AD therapies is unmet. The 5-hydroxytryptamine4 receptor (5-HT4R) partial agonists may be of benefit for both the symptomatic and disease-modifying treatment of cognitive disorders associated with AD. Herein, we report the design, synthesis and SAR of imidazo[1,5-a] pyridine derivatives as 5-HT4R partial agonists. The focused SAR, optimization of ADME properties resulted the discovery of compound 5a as potent, selective, brain penetrant 5-HT4 partial agonist as a lead compound with good ADME properties and efficacy in both symptomatic and disease modifying animal models of cognition.
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Affiliation(s)
- Ramakrishna Nirogi
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad, 500 034, India.
| | - Abdul Rasheed Mohammed
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad, 500 034, India
| | - Anil K Shinde
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad, 500 034, India
| | - Narsimha Bogaraju
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad, 500 034, India
| | - Shankar Reddy Gagginapalli
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad, 500 034, India
| | - Srinivasa Rao Ravella
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad, 500 034, India
| | - Laxman Kota
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad, 500 034, India
| | - Gopinadh Bhyrapuneni
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad, 500 034, India
| | - Nageswara Rao Muddana
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad, 500 034, India
| | - Vijay Benade
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad, 500 034, India
| | - Raghava Chowdary Palacharla
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad, 500 034, India
| | - Pradeep Jayarajan
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad, 500 034, India
| | - Ramkumar Subramanian
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad, 500 034, India
| | - Vinod Kumar Goyal
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad, 500 034, India
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Benade VS, Daripelli S, Thentu JB, Manoharan A, Medapati RB, Subramanian R, Mekala VR, Shinde AK, Badange RK, Goyal VK, Pandey SK, Nirogi R. P1‐310: Suvn‐g3031, an h
3
receptor inverse agonist, produces procognitive effects without affecting sleep in preclinical models. Alzheimers Dement 2015. [DOI: 10.1016/j.jalz.2015.06.525] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Bhatt RS, Karim SA, Sahoo A, Shinde AK. Growth performance of lambs fed diet supplemented with rice bran oil as such or as calcium soap. Asian-Australas J Anim Sci 2014; 26:812-9. [PMID: 25049854 PMCID: PMC4093241 DOI: 10.5713/ajas.2012.12624] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Revised: 12/29/2012] [Accepted: 12/20/2012] [Indexed: 11/30/2022]
Abstract
Forty two Malpura lambs (21 d old) were divided into three groups of 14 each consisting of 8 females and 6 males. Lambs were allowed to suckle their respective dams twice daily up to weaning (13 wks) and offered free choice concentrate and roughage in a cafeteria system. The lambs in control group were fed conventional concentrate mixture, in RBO group concentrate mixture fortified with 4% industrial grade rice bran oil and in Ca-soap rice bran oil (as in RBO group) was supplemented in the form of calcium soap. The concentrate intake decreased(p≤0.05) in RBO group as a result total dry matter, crude protein and metabolizable energy intake decreased compared to control whereas Ca-soap prepared from the same rice bran oil stimulated the concentrate intake leading to higher total dry matter, crude protein and energy intakes. The digestibility of dry matter (p≤0.05), organic matter (p≤0.05) and crude protein (p≤0.05) was higher in RBO group followed by Ca-soap and control whereas no effect was observed for ether extract digestibility. Higher cholesterol (p≤0.05) content was recorded in serum of oil supplemented groups (RBO and Ca-soap) while no effect was recorded for other blood parameters. Rice bran oil as such adversely affected and reduced the body weight gain (p≤0.001) of lambs in comparison to control whereas the Ca-soap of rice bran oil improved body weight gain and feed conversion efficiency in lambs. Fat supplementation decreased total volatile fatty acids (p≤0.05) and individual volatile fatty acid concentration which increased at 4 h post feeding. Fat supplementation also reduced (p≤0.05) total protozoa count. Ca-soap of rice bran oil improved pre slaughter weight (p≤0.05) and hot carcass weight (p≤0.05). It is concluded from the study that rice bran oil in the form of calcium soap at 40 g/kg of concentrate improved growth, feed conversion efficiency and carcass quality as compared to rice bran oil as such and control groups.
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Affiliation(s)
- R S Bhatt
- Central Sheep and Wool Research Institute, Avikanagar-304 501, Rajasthan, India
| | - S A Karim
- Central Sheep and Wool Research Institute, Avikanagar-304 501, Rajasthan, India
| | - A Sahoo
- Central Sheep and Wool Research Institute, Avikanagar-304 501, Rajasthan, India
| | - A K Shinde
- Central Sheep and Wool Research Institute, Avikanagar-304 501, Rajasthan, India
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Nirogia RVS, Kambhampati R, Daulatabad AV, Gudla P, Shaikh M, Achanta PK, Shinde AK, Dubey PK. Design, synthesis and pharmacological evaluation of conformationally restricted N-arylsulfonyl-3-aminoalkoxy indoles as a potential 5-HT6 receptor ligands. J Enzyme Inhib Med Chem 2011; 26:341-9. [PMID: 21524149 DOI: 10.3109/14756366.2010.510471] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A series of novel conformationally restricted N(1)-arylsulfonyl-3-aminoalkoxy indoles were designed and synthesized as 5-HT(6) receptor (5-HT(6)R) ligands. Many of the synthesized compounds have moderate in vitro-binding affinities at 5-HT(6)R. The lead compound 8b (% inhibition = 97.2 at 1 μM) from this series has good pharmacokinetic profile in male Wister rats and is active in animal model of cognition like Morris water maze. The details of chemistry, SAR, pharmacokinetics and pharmacological data constitute the subject matter of this report.
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Affiliation(s)
- Ramakrishna V S Nirogia
- Discovery Research-Medicinal Chemistry, Suven Life Sciences Ltd, Serene Chambers, Banjara Hills, Hyderabad, India.
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Nirogi RVS, Kambhampati RS, Kothmirkar P, Arepalli S, Pamuleti NRG, Shinde AK, Dubey PK. Convenient and Efficient Synthesis of Some Novel Fused Thieno Pyrimidines Using Gewald's Reaction. SYNTHETIC COMMUN 2011. [DOI: 10.1080/00397911.2010.515357] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Nirogi RV, Kambhampati R, Kothmirkar P, Konda J, Bandyala TR, Gudla P, Arepalli S, Gangadasari NP, Shinde AK, Deshpande AD, Dwarampudi A, Chindhe AK, Dubey PK. Synthesis and structure–activity relationship of novel conformationally restricted analogues of serotonin as 5-HT6 receptor ligands. J Enzyme Inhib Med Chem 2011; 27:443-50. [DOI: 10.3109/14756366.2011.595713] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Ramakrishna V.S. Nirogi
- Discovery Research-Medicinal Chemistry, Suven Life Sciences Ltd.,
Banjara Hills, Hyderabad, India
| | - Ramasastri Kambhampati
- Discovery Research-Medicinal Chemistry, Suven Life Sciences Ltd.,
Banjara Hills, Hyderabad, India
| | - Prabhakar Kothmirkar
- Discovery Research-Medicinal Chemistry, Suven Life Sciences Ltd.,
Banjara Hills, Hyderabad, India
| | - Jagadishbabu Konda
- Discovery Research-Medicinal Chemistry, Suven Life Sciences Ltd.,
Banjara Hills, Hyderabad, India
| | - Thrinath Reddy Bandyala
- Discovery Research-Medicinal Chemistry, Suven Life Sciences Ltd.,
Banjara Hills, Hyderabad, India
| | - Parandhama Gudla
- Discovery Research-Medicinal Chemistry, Suven Life Sciences Ltd.,
Banjara Hills, Hyderabad, India
| | - Sobhanadri Arepalli
- Discovery Research-Medicinal Chemistry, Suven Life Sciences Ltd.,
Banjara Hills, Hyderabad, India
| | | | - Anil K. Shinde
- Discovery Research-Medicinal Chemistry, Suven Life Sciences Ltd.,
Banjara Hills, Hyderabad, India
| | - Amol D. Deshpande
- Discovery Research-Medicinal Chemistry, Suven Life Sciences Ltd.,
Banjara Hills, Hyderabad, India
| | - Adireddy Dwarampudi
- Discovery Research-Medicinal Chemistry, Suven Life Sciences Ltd.,
Banjara Hills, Hyderabad, India
| | - Anil K. Chindhe
- Discovery Research-Medicinal Chemistry, Suven Life Sciences Ltd.,
Banjara Hills, Hyderabad, India
| | - Pramod Kumar Dubey
- Department of Chemistry, Jawaharlal Nehru Technological University Hyderabad,
Kukatpally, Hyderabad, India
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Nirogi RV, Deshpande AD, Kambhampati R, Badange RK, Kota L, Daulatabad AV, Shinde AK, Ahmad I, Kandikere V, Jayarajan P, Dubey P. Indole-3-piperazinyl derivatives: Novel chemical class of 5-HT6 receptor antagonists. Bioorg Med Chem Lett 2011; 21:346-9. [DOI: 10.1016/j.bmcl.2010.11.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2010] [Revised: 10/08/2010] [Accepted: 11/01/2010] [Indexed: 02/01/2023]
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Nirogi RVS, Kothmirkar P, Kambhampati R, Konda JB, Arepalli S, Pamuleti NG, Deshpande AD, Bandyala T, Shinde AK, Dubey PK. Novel and Potent 5-Piperazinyl Methyl-N 1-aryl Sulfonyl Indole Derivatives as 5-HT6 Receptor Ligands. ACS Med Chem Lett 2010; 1:340-4. [PMID: 24900216 DOI: 10.1021/ml100101u] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2010] [Accepted: 06/06/2010] [Indexed: 11/30/2022] Open
Abstract
The exclusive distribution of 5-HT6 receptors in the brain regions associated with learning and memory makes it an ideal target for cognitive disorders. A novel series of 5-piperazinyl methyl-N 1-aryl sulfonyl indoles were designed and synthesized as 5-HT6R ligands. Most of the synthesized compounds are potent when tested by in vitro radioligand binding assay. The lead compound from the series does not have the CYP liabilities and is active in an animal model of cognition.
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Affiliation(s)
- Ramakrishna V. S. Nirogi
- Discovery Research, Suven Life Sciences Limited, Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Prabhakar Kothmirkar
- Discovery Research, Suven Life Sciences Limited, Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Ramasastri Kambhampati
- Discovery Research, Suven Life Sciences Limited, Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Jagadish Babu Konda
- Discovery Research, Suven Life Sciences Limited, Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Sobhanadri Arepalli
- Discovery Research, Suven Life Sciences Limited, Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Narasimhareddy G. Pamuleti
- Discovery Research, Suven Life Sciences Limited, Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Amol D. Deshpande
- Discovery Research, Suven Life Sciences Limited, Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Trinathreddy Bandyala
- Discovery Research, Suven Life Sciences Limited, Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Anil K. Shinde
- Discovery Research, Suven Life Sciences Limited, Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - P. K. Dubey
- Department of Chemistry, Jawaharlal Nehru Technological University Hyderabad
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Nirogi RV, Daulatabad AV, Parandhama G, Mohammad S, Sastri K, Shinde AK, Dubey P. Synthesis and pharmacological evaluation of aryl aminosulfonamide derivatives as potent 5-HT6 receptor antagonists. Bioorg Med Chem Lett 2010; 20:4440-3. [DOI: 10.1016/j.bmcl.2010.06.060] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2010] [Revised: 05/20/2010] [Accepted: 06/09/2010] [Indexed: 10/19/2022]
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Kambhampati R, Kothmirkar P, Deshpande AD, Arepalli S, Karturi KR, Pamuleti NRG, Shinde AK, Nirogi RVS. Synthesis of Novel Rigid Analogs of Tryptamine as Potential Serotonin Ligands through Pd(0)-Catalyzed Diaryl Coupling Reactions. SYNTHETIC COMMUN 2008. [DOI: 10.1080/00397910802139205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
| | - Prabhakar Kothmirkar
- a Medicinal Chemistry Discovery Research, Suven Life Sciences Ltd , Hyderabad, India
| | - Amol D. Deshpande
- a Medicinal Chemistry Discovery Research, Suven Life Sciences Ltd , Hyderabad, India
| | - Sobhanadri Arepalli
- a Medicinal Chemistry Discovery Research, Suven Life Sciences Ltd , Hyderabad, India
| | - Kameswara Rao Karturi
- a Medicinal Chemistry Discovery Research, Suven Life Sciences Ltd , Hyderabad, India
| | | | - Anil K. Shinde
- a Medicinal Chemistry Discovery Research, Suven Life Sciences Ltd , Hyderabad, India
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27
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Yadav MR, Shinde AK, Chouhan BS, Giridhar R, Menard R. Peptidomimetic 2-cyanopyrrolidines as potent selective cathepsin L inhibitors. J Enzyme Inhib Med Chem 2008; 23:190-7. [PMID: 18343903 DOI: 10.1080/14756360701504842] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
Cathepsins have been found to have important physiological roles. The implication of cathepsin L in various types of cancers is well established. In a search for selective cathepsin L inhibitors as anticancer agents, a series of 2-cyanoprrolidine peptidomimetics, carrying a nitrile group as warhead, were designed. Two series of compounds, one with a benzyl moiety and a second with an isobutyl moiety at P(2) position of the enzyme were synthesized. The synthesized compounds were evaluated for inhibitory activity against human cathepsin L and cathepsin B. Although, none of the compounds showed promising inhibitory activity, (E)N-{(S)1-[(S)2-cyano-1-pyrrolidinecarbonyl]-3-methylbutyl}-2,3-diphenylacrylamide (24) with an isobutyl moiety at P(2) was found to show selectivity as a cathepsin L inhibitor (Ki 5.3 microM for cathepsin L and Ki > 100 microM for cathepsin B). This compound could act as a new lead for the further development of improved inhibitors within this inhibitor type.
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Affiliation(s)
- Mange R Yadav
- Pharmacy Department, Faculty of Technology and Engineering, The M S University of Baroda, Vadodara, India.
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Kambhampati R, Konda J, Reballi V, Shinde AK, Dubey PK, Nirogi RVS. Design, synthesis and preliminary screening of novel 3-(2-N,N-dimethylaminoethylthio) indole derivatives as potential 5-HT(6) receptor ligands. J Enzyme Inhib Med Chem 2008; 23:302-12. [PMID: 18569332 DOI: 10.1080/14756360701526936] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
The synthesis and potential 5-hydroxytryptamine(6) receptor (5-HT6R) antagonist activity of a novel series of N-arylsulfonyl-3-(2-N,N-dimethylaminoethylthio) indoles has been reported. The molecular modeling, synthesis and in-vitro radioligand binding data of this series are discussed. The present article describes 37 derivatives of the title series. It was observed that the increased side-chain length with the insertion of a sulfur atom did not lead to the loss of binding affinity of these compounds, although the affinities were reduced. The compounds exhibited moderate affinity and selectivity to human 5-HT6 receptors.
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Affiliation(s)
- Ramasastri Kambhampati
- Medicinal Chemistry, Discovery Research, Suven Life Sciences Ltd, Serene Chambers, Hyderabad, India
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