1
|
Wang DX, Cao P. The crystal structure of 2,5,5-triphenyl-3,5-dihydro-4 H-imidazol-4-one, C 21H 16N 2O. Z KRIST-NEW CRYST ST 2022. [DOI: 10.1515/ncrs-2022-0082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C21H16N2O, monoclinic, P21/c (no. 14), a = 13.8987(3) Å, b = 15.0321(5) Å, c = 8.1727(2) Å, β = 99.337(2)°, V = 1684.87(8) Å3, Z = 4, R
gt
(F) = 0.0411, wR
ref
(F
2) = 0.1137, T = 293(2) K.
Collapse
Affiliation(s)
- De-Xing Wang
- Nanjing Innovation Centre for Environmental Protection , Nanjing , China
| | - Peng Cao
- Taizhou Institute of Science and Technology, Nanjing University of Science and Technology , Taizhou , Jiangsu , China
| |
Collapse
|
2
|
Xie F, Chen X, Zhang X, Luo C, Lin S, Chen X, Li B, Li Y, Zhang M. OMS-2 nanorod-supported cobalt catalyst for aerobic dehydrocyclization of vicinal diols and amidines: Access to functionalized imidazolones. J Catal 2021. [DOI: 10.1016/j.jcat.2021.04.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
3
|
The Ugly Duckling Metamorphosis: The Ammonia/Formaldehyde Couple Made Possible in Ugi Reactions. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
4
|
Keel KL, Tepe J. The preparation of (4H)-imidazol-4-ones and their application in the total synthesis of natural products. Org Chem Front 2020; 7:3284-3311. [PMID: 33796321 DOI: 10.1039/d0qo00764a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
(4H)-Imidazol-4-ones are an important scaffold for a variety of applications, including natural products, medicine, agriculture, and other applications. Over the years, there have been a number of preparations published for the synthesis of imidazol-4-ones. This review discusses the progress made on the synthesis of imidazol-4-ones, and their application towards the total synthesis of a range of imidazol-4-one containing natural products. Emphasis is made on areas of the field that still need progress.
Collapse
|
5
|
Gumbs MCR, Eggels L, Kool T, Unmehopa UA, van den Heuvel JK, Lamuadni K, Mul JD, la Fleur SE. Neuropeptide Y Signaling in the Lateral Hypothalamus Modulates Diet Component Selection and is Dysregulated in a Model of Diet-Induced Obesity. Neuroscience 2019; 447:28-40. [PMID: 31887359 DOI: 10.1016/j.neuroscience.2019.12.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 12/06/2019] [Accepted: 12/09/2019] [Indexed: 01/16/2023]
Abstract
The preclinical multicomponent free-choice high-fat high-sucrose (fcHFHS) diet has strong validity to model diet-induced obesity (DIO) and associated maladaptive molecular changes in the central nervous system. fcHFHS-induced obese rats demonstrate increased sensitivity to intracerebroventricular infusion of the orexigenic Neuropeptide Y (NPY). The brain region-specific effects of NPY signaling on fcHFHS diet component selection are not completely understood. For example, fcHFHS-fed rats have increased intake of chow and fat following intracerebroventricular NPY infusion, whereas NPY administration in the nucleus accumbens, a key hub of the reward circuitry, specifically increases fat intake. Here, we investigated whether NPY infusion in the lateral hypothalamic area (LHA), which is crucially involved in the regulation of intake, regulates fcHFHS component selection, and if LHA NPY receptor subtypes 1 or 5 (NPYR1/5) are involved. Male Wistar rats were fed a chow or fcHFHS diet for at least seven days, and received intra-LHA vehicle or NPY infusions in a cross-over design. Diet component intake was measured two hours later. Separate experimental designs were used to test the efficacy of NPY1R- or NPY5R antagonism to prevent the orexigenic effects of intra-LHA NPY. Intra-LHA NPY increased caloric intake in chow- and fcHFHS-fed rats. This effect was mediated specifically by chow intake in fcHFHS-fed rats. The orexigenic effects of intra-LHA NPY were prevented by NPY1R and NPY5R antagonism in chow-fed rats, but only by NPY5R antagonism in fcHFHS-fed rats. Thus, NPY signaling has brain region-specific effects on fcHFHS component selection and LHA NPYR sensitivity is dysregulated during consumption of a fcHFHS diet.
Collapse
Affiliation(s)
- M C R Gumbs
- Amsterdam UMC, University of Amsterdam, Department of Endocrinology and Metabolism and Laboratory of Endocrinology, Department of Clinical Chemistry, Amsterdam Neuroscience, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; Metabolism and Reward Group, Netherlands Institute for Neuroscience, An Institute of the Royal Netherlands Academy of Arts and Sciences (KNAW), Meibergdreef 47, 1105 BA Amsterdam, The Netherlands
| | - L Eggels
- Amsterdam UMC, University of Amsterdam, Department of Endocrinology and Metabolism and Laboratory of Endocrinology, Department of Clinical Chemistry, Amsterdam Neuroscience, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; Metabolism and Reward Group, Netherlands Institute for Neuroscience, An Institute of the Royal Netherlands Academy of Arts and Sciences (KNAW), Meibergdreef 47, 1105 BA Amsterdam, The Netherlands
| | - T Kool
- Amsterdam UMC, University of Amsterdam, Department of Endocrinology and Metabolism and Laboratory of Endocrinology, Department of Clinical Chemistry, Amsterdam Neuroscience, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - U A Unmehopa
- Amsterdam UMC, University of Amsterdam, Department of Endocrinology and Metabolism and Laboratory of Endocrinology, Department of Clinical Chemistry, Amsterdam Neuroscience, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - J K van den Heuvel
- Amsterdam UMC, University of Amsterdam, Department of Endocrinology and Metabolism and Laboratory of Endocrinology, Department of Clinical Chemistry, Amsterdam Neuroscience, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - K Lamuadni
- Amsterdam UMC, University of Amsterdam, Department of Endocrinology and Metabolism and Laboratory of Endocrinology, Department of Clinical Chemistry, Amsterdam Neuroscience, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; Metabolism and Reward Group, Netherlands Institute for Neuroscience, An Institute of the Royal Netherlands Academy of Arts and Sciences (KNAW), Meibergdreef 47, 1105 BA Amsterdam, The Netherlands
| | - J D Mul
- Amsterdam UMC, University of Amsterdam, Department of Endocrinology and Metabolism and Laboratory of Endocrinology, Department of Clinical Chemistry, Amsterdam Neuroscience, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; Metabolism and Reward Group, Netherlands Institute for Neuroscience, An Institute of the Royal Netherlands Academy of Arts and Sciences (KNAW), Meibergdreef 47, 1105 BA Amsterdam, The Netherlands; Brain Plasticity Group, Center for Neuroscience, Swammerdam Institute for Life Sciences, University of Amsterdam, Sciencepark 904, 1098 XH Amsterdam, The Netherlands
| | - S E la Fleur
- Amsterdam UMC, University of Amsterdam, Department of Endocrinology and Metabolism and Laboratory of Endocrinology, Department of Clinical Chemistry, Amsterdam Neuroscience, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; Metabolism and Reward Group, Netherlands Institute for Neuroscience, An Institute of the Royal Netherlands Academy of Arts and Sciences (KNAW), Meibergdreef 47, 1105 BA Amsterdam, The Netherlands.
| |
Collapse
|
6
|
Szabó KE, Kyriakis E, Psarra AMG, Karra AG, Sipos Á, Docsa T, Stravodimos GA, Katsidou E, Skamnaki VT, Liggri PGV, Zographos SE, Mándi A, Király SB, Kurtán T, Leonidas DD, Somsák L. Glucopyranosylidene-spiro-imidazolinones, a New Ring System: Synthesis and Evaluation as Glycogen Phosphorylase Inhibitors by Enzyme Kinetics and X-ray Crystallography. J Med Chem 2019; 62:6116-6136. [PMID: 31251604 DOI: 10.1021/acs.jmedchem.9b00356] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Epimeric series of aryl-substituted glucopyranosylidene-spiro-imidazolinones, an unprecedented new ring system, were synthesized from the corresponding Schiff bases of O-perbenzoylated (gluculopyranosylamine)onamides by intramolecular ring closure of the aldimine moieties with the carboxamide group elicited by N-bromosuccinimide in pyridine. Test compounds were obtained by Zemplén O-debenzoylation. Stereochemistry and ring tautomers of the new compounds were investigated by NMR, time-dependent density functional theory (TDDFT)-electronic circular dichroism, and DFT-NMR methods. Kinetic studies with rabbit muscle and human liver glycogen phosphorylases showed that the (R)-imidazolinones were 14-216 times more potent than the (S) epimers. The 2-naphthyl-substituted (R)-imidazolinone was the best inhibitor of the human enzyme (Ki 1.7 μM) and also acted on HepG2 cells (IC50 177 μM). X-ray crystallography revealed that only the (R) epimers bound in the crystal. Their inhibitory efficacy is based on the hydrogen-bonding interactions of the carbonyl oxygen and the NH of the imidazolinone ring.
Collapse
Affiliation(s)
- Katalin E Szabó
- Department of Organic Chemistry , University of Debrecen , P.O. Box 400, H-4002 Debrecen , Hungary
| | - Efthimios Kyriakis
- Department of Biochemistry and Biotechnology , University of Thessaly, Biopolis , 41500 Larissa , Greece
| | - Anna-Maria G Psarra
- Department of Biochemistry and Biotechnology , University of Thessaly, Biopolis , 41500 Larissa , Greece
| | - Aikaterini G Karra
- Department of Biochemistry and Biotechnology , University of Thessaly, Biopolis , 41500 Larissa , Greece
| | - Ádám Sipos
- Department of Medical Chemistry, Faculty of Medicine , University of Debrecen , Egyetem tér 1 , H-4032 Debrecen , Hungary
| | - Tibor Docsa
- Department of Medical Chemistry, Faculty of Medicine , University of Debrecen , Egyetem tér 1 , H-4032 Debrecen , Hungary
| | - George A Stravodimos
- Department of Biochemistry and Biotechnology , University of Thessaly, Biopolis , 41500 Larissa , Greece
| | - Elisabeth Katsidou
- Department of Biochemistry and Biotechnology , University of Thessaly, Biopolis , 41500 Larissa , Greece
| | - Vassiliki T Skamnaki
- Department of Biochemistry and Biotechnology , University of Thessaly, Biopolis , 41500 Larissa , Greece
| | - Panagiota G V Liggri
- Department of Biochemistry and Biotechnology , University of Thessaly, Biopolis , 41500 Larissa , Greece.,Institute of Biology, Pharmaceutical Chemistry and Biotechnology , National Hellenic Research Foundation , 48 Vassileos Constantinou Avenue , 11635 Athens , Greece
| | - Spyros E Zographos
- Institute of Biology, Pharmaceutical Chemistry and Biotechnology , National Hellenic Research Foundation , 48 Vassileos Constantinou Avenue , 11635 Athens , Greece
| | - Attila Mándi
- Department of Organic Chemistry , University of Debrecen , P.O. Box 400, H-4002 Debrecen , Hungary
| | - Sándor Balázs Király
- Department of Organic Chemistry , University of Debrecen , P.O. Box 400, H-4002 Debrecen , Hungary
| | - Tibor Kurtán
- Department of Organic Chemistry , University of Debrecen , P.O. Box 400, H-4002 Debrecen , Hungary
| | - Demetres D Leonidas
- Department of Biochemistry and Biotechnology , University of Thessaly, Biopolis , 41500 Larissa , Greece
| | - László Somsák
- Department of Organic Chemistry , University of Debrecen , P.O. Box 400, H-4002 Debrecen , Hungary
| |
Collapse
|
7
|
Zhu C, Liu C, Zeng H, Chen F, Jiang H. Transition-metal free selective C(α)–C(β) bond cleavage of trifluoromethyl ketones with amidines under air: facile access to 5-trifluoromethylated Imidazol-4-ones. Org Chem Front 2019. [DOI: 10.1039/c9qo00029a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis of 5-trifluoromethylated imidazol-4-ones via transition-metal-free selective C(α)–C(β) bond cleavage of trifluoromethyl ketones with amidines under air.
Collapse
Affiliation(s)
- Chuanle Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Chi Liu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Hao Zeng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Fulin Chen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| |
Collapse
|
8
|
DiPoto MC, Wu J. Synthesis of 2-Aminoimidazolones and Imidazolones by (3 + 2) Annulation of Azaoxyallyl Cations. Org Lett 2018; 20:499-501. [PMID: 29320191 DOI: 10.1021/acs.orglett.7b03719] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The first examples of (3 + 2) annulations between azaoxyallyl cations and cyanamides and nitriles to give the corresponding 2-aminoimidazolones and imidazolones are reported. On the basis of the isolation of unexpected imidate products with certain substrates, it is proposed that the reaction proceeds via fast kinetic O-alkylation followed by rearrangement to the thermodynamically favored 2-aminoimidazolones and imidazolones. The method was applied to the formal synthesis of the antihypertensive drug irbesartan.
Collapse
Affiliation(s)
- Maria C DiPoto
- Department of Chemistry, Dartmouth College , Hanover, New Hampshire 03755, United States
| | - Jimmy Wu
- Department of Chemistry, Dartmouth College , Hanover, New Hampshire 03755, United States
| |
Collapse
|
9
|
The neuropeptide Y system: Pathophysiological and therapeutic implications in obesity and cancer. Pharmacol Ther 2011; 131:91-113. [DOI: 10.1016/j.pharmthera.2011.03.011] [Citation(s) in RCA: 131] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2011] [Accepted: 03/07/2011] [Indexed: 12/28/2022]
|
10
|
Biagetti M, Leslie CP, Mazzali A, Seri C, Pizzi DA, Bentley J, Genski T, Di Fabio R, Zonzini L, Caberlotto L. Synthesis and structure-activity relationship of N-(3-azabicyclo[3.1.0]hex-6-ylmethyl)-5-(2-pyridinyl)-1,3-thiazol-2-amines derivatives as NPY Y5 antagonists. Bioorg Med Chem Lett 2010; 20:4741-4. [PMID: 20630754 DOI: 10.1016/j.bmcl.2010.06.140] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2010] [Revised: 06/25/2010] [Accepted: 06/29/2010] [Indexed: 11/17/2022]
Abstract
A novel class of small molecule NPY Y5 antagonists based around an azabicyclo[3.1.0]hexane scaffold was identified through modification of a screening hit. Structure-activity relationships and efforts undertaken to achieve a favourable pharmacokinetic profile in rat are described.
Collapse
Affiliation(s)
- Matteo Biagetti
- GlaxoSmithKline, Neurosciences Centre of Excellence for Drug Discovery, Medicines Research Centre, Verona, Italy.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Sakamoto T, Moriya M, Tsuge H, Takahashi T, Haga Y, Nonoshita K, Okamoto O, Takahashi H, Sakuraba A, Hirohashi T, Shibata T, Kanno T, Ito J, Iwaasa H, Gomori A, Ishihara A, Fukuroda T, Kanatani A, Fukami T. Novel orally active NPY Y5 receptor antagonists: Synthesis and structure-activity relationship of spiroindoline class compounds. Bioorg Med Chem 2009; 17:5015-26. [PMID: 19525116 DOI: 10.1016/j.bmc.2009.05.064] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2009] [Revised: 05/25/2009] [Accepted: 05/27/2009] [Indexed: 10/20/2022]
Abstract
Spiroindoline urea derivatives, designed to act as NPY Y5 receptor antagonists, were synthesized and their structure-activity relationships were investigated. Of these derivatives, compound 3a showed good Y5 binding affinity with favorable pharmacokinetic properties. Compound 3a significantly inhibited bPP Y5 agonist-induced food intake in rats, and suppressed body weight gain in DIO mice.
Collapse
Affiliation(s)
- Toshihiro Sakamoto
- Tsukuba Research Institute, Merck Research Laboratories, Banyu Pharmaceutical Co., Ltd, Okubo-3, Tsukuba, Ibaraki 300-2611, Japan.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Sakamoto T, Moriya M, Haga Y, Takahashi T, Shibata T, Okamoto O, Nonoshita K, Kitazawa H, Hidaka M, Gomori A, Iwaasa H, Ishihara A, Kanatani A, Fukami T, Gao YD, Macneil DJ, Yang L. Identification of novel and orally active spiroindoline NPY Y5 receptor antagonists. Bioorg Med Chem Lett 2009; 19:1564-8. [PMID: 19243937 DOI: 10.1016/j.bmcl.2009.02.035] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2009] [Revised: 02/04/2009] [Accepted: 02/07/2009] [Indexed: 11/24/2022]
Abstract
A series of spiroindoline-3,4'-piperidine derivatives were synthesized and evaluated for their binding affinities and antagonistic activities at Y5 receptors. Potent Y5 antagonists were tested for their oral bioavailabilities and brain penetration in rats. Some of the antagonists showed good oral bioavailability and/or good brain penetration. In particular, compound 6e was orally bioavailable and brain penetrant, and oral administration of 6e inhibited bPP-induced food intake in rats with a minimum effective dose of 10mg/kg.
Collapse
Affiliation(s)
- Toshihiro Sakamoto
- Tsukuba Research Institute, Banyu Pharmaceutical Co., Ltd, Okubo 3, Tsukuba 300-2611, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
13
|
V. Tverdokhlebov A, A. Chalyk B, T. Iminov R, A. Tolmachev A. Preparation of 5-Amino-1,2-dihydro-4-(1-methyl-4-piperidinyl)pyrrol-3-ones. HETEROCYCLES 2009. [DOI: 10.3987/com-09-11701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
14
|
Ogino Y, Ohtake N, Nagae Y, Matsuda K, Moriya M, Suga T, Ishikawa M, Kanesaka M, Mitobe Y, Ito J, Kanno T, Ishihara A, Iwaasa H, Ohe T, Kanatani A, Fukami T. Design, syntheses, and structure–activity relationships of novel NPY Y5 receptor antagonists: 2-{3-Oxospiro[isobenzofuran-1(3H),4′-piperidin]-1′-yl}benzimidazole derivatives. Bioorg Med Chem Lett 2008; 18:5010-4. [DOI: 10.1016/j.bmcl.2008.08.018] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2008] [Revised: 07/15/2008] [Accepted: 08/06/2008] [Indexed: 10/21/2022]
|
15
|
Ogino Y, Ohtake N, Nagae Y, Matsuda K, Ishikawa M, Moriya M, Kanesaka M, Mitobe Y, Ito J, Kanno T, Ishihara A, Iwaasa H, Ohe T, Kanatani A, Fukami T. Syntheses and structure-activity relationships of novel, potent, and selective trans-2-[3-oxospiro[isobenzofuran-1(3H),1'-cyclohexan]-4'-yl]benzimidazole NPY Y5 receptor antagonists. Bioorg Med Chem Lett 2008; 18:4997-5001. [PMID: 18752943 DOI: 10.1016/j.bmcl.2008.08.021] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2008] [Revised: 07/31/2008] [Accepted: 08/08/2008] [Indexed: 11/28/2022]
Abstract
Syntheses and structure-activity relationships of a novel class of 2-[3-oxospiro[isobenzofuran-1(3H),1'-cyclohexan]-4'-yl]benzimidazole NPY Y5 receptor antagonists are described. Optimization of the lead compound 2a by incorporating substituents into the 5-position or into both the 5- and 6-positions of the benzimidazole core part led to the identification of 5-(5-methyl-1,2,4-oxadiazol-2-yl)benzimidazole (2r: IC(50)=3.3 nM) and 5-(2-methyltetrazol-5-yl)benzimidazole (2u: IC(50)=5.9 nM), both of which are potent, selective, and orally bioavailable Y5 receptor antagonists.
Collapse
Affiliation(s)
- Yoshio Ogino
- Banyu Tsukuba Research Institute, Banyu Pharmaceutical Co. Ltd, Okubo-3, Tsukuba 300-2611, Ibaraki, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
16
|
Ntaganda R, Milovic T, Tiburcio J, Thadani AN. Direct, facile synthesis of N-acyl-α-amino amides from α-keto esters and ammonia. Chem Commun (Camb) 2008:4052-4. [DOI: 10.1039/b808302a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
17
|
Li G, Stamford AW, Huang Y, Cheng KC, Cook J, Farley C, Gao J, Ghibaudi L, Greenlee WJ, Guzzi M, van Heek M, Hwa JJ, Kelly J, Mullins D, Parker EM, Wainhaus S, Zhang X. Discovery of novel orally active ureido NPY Y5 receptor antagonists. Bioorg Med Chem Lett 2007; 18:1146-50. [PMID: 18160282 DOI: 10.1016/j.bmcl.2007.11.132] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2007] [Revised: 11/29/2007] [Accepted: 11/30/2007] [Indexed: 11/16/2022]
Abstract
We have derived a novel series of neuropeptide Y (NPY) Y5 receptor antagonists from the biphenylurea 3. Cyclohexylurea 21c, a member of the series, is a potent NPY Y5 receptor antagonist that exhibits excellent pharmacokinetic parameters in rats and dogs. On chronic oral administration to diet-induced obese rats, 21c displayed an anti-obesity profile, causing a modest reduction in food intake, a significant decrease in body weight gain, a decrease in adipose mass, and an increase in lean tissue mass.
Collapse
Affiliation(s)
- Guoqing Li
- Department of Chemical Research, Schering-Plough Research Institute, 2015 Galloping Hill Road MS 2545, Kenilworth, NJ 07033-0359, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|