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Nagaya A, Murase S, Mimori Y, Wakui K, Yoshino M, Matsuda A, Kobayashi Y, Kurasaki H, Cary DR, Masuya K, Handa M, Nishizawa N. Extended Solution-phase Peptide Synthesis Strategy Using Isostearyl-Mixed Anhydride Coupling and a New C-Terminal Silyl Ester-Protecting Group for N-Methylated Cyclic Peptide Production. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.1c00078] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Akihiro Nagaya
- Chemical Research Laboratories, Nissan Chemical Corporation, 2-10-1, Tsuboi-Nishi, Funabashi 274-8507, Chiba, Japan
| | - Shota Murase
- Chemical Research Laboratories, Nissan Chemical Corporation, 2-10-1, Tsuboi-Nishi, Funabashi 274-8507, Chiba, Japan
| | - Yuji Mimori
- Chemical Research Laboratories, Nissan Chemical Corporation, 2-10-1, Tsuboi-Nishi, Funabashi 274-8507, Chiba, Japan
| | - Kazuya Wakui
- Chemical Research Laboratories, Nissan Chemical Corporation, 2-10-1, Tsuboi-Nishi, Funabashi 274-8507, Chiba, Japan
| | - Madoka Yoshino
- Chemical Research Laboratories, Nissan Chemical Corporation, 2-10-1, Tsuboi-Nishi, Funabashi 274-8507, Chiba, Japan
| | - Ayumu Matsuda
- PeptiDream, Inc., 3-25-23 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-0821, Japan
| | - Yutaka Kobayashi
- PeptiDream, Inc., 3-25-23 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-0821, Japan
| | - Haruaki Kurasaki
- PeptiDream, Inc., 3-25-23 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-0821, Japan
| | - Douglas R. Cary
- PeptiDream, Inc., 3-25-23 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-0821, Japan
| | - Keiichi Masuya
- PeptiDream, Inc., 3-25-23 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-0821, Japan
| | - Michiharu Handa
- Chemical Research Laboratories, Nissan Chemical Corporation, 2-10-1, Tsuboi-Nishi, Funabashi 274-8507, Chiba, Japan
| | - Naoki Nishizawa
- Chemical Research Laboratories, Nissan Chemical Corporation, 2-10-1, Tsuboi-Nishi, Funabashi 274-8507, Chiba, Japan
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Scale-Up Synthesis and Identification of GLYX-13, a NMDAR Glycine-Site Partial Agonist for the Treatment of Major Depressive Disorder. Molecules 2018; 23:molecules23050996. [PMID: 29695090 PMCID: PMC6102568 DOI: 10.3390/molecules23050996] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 04/11/2018] [Accepted: 04/21/2018] [Indexed: 12/15/2022] Open
Abstract
GLYX-13, a NMDAR glycine-site partial agonist, was discovered as a promising antidepressant with rapidly acting effects but no ketamine-like side effects. However, the reported synthetic process route had deficiencies of low yield and the use of unfriendly reagents. Here, we report a scaled-up synthesis of GLYX-13 with an overall yield of 30% on the hectogram scale with a column chromatography-free strategy, where the coupling and deprotection reaction conditions were systematically optimized. Meanwhile, the absolute configuration of precursor compound of GLYX-13 was identified by X-ray single crystal diffraction. Finally, the activity of GLYX-13 was verified in the cortical neurons of mice through whole-cell voltage-clamp technique.
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Regenass P, Bosc D, Riché S, Gizzi P, Hibert M, Karmazin L, Ganesan A, Bonnet D. Comparative Study of the Synthesis and Structural and Physicochemical Properties of Diketopiperazines vs Aza-diketopiperazines. J Org Chem 2017; 82:3239-3244. [PMID: 28230990 DOI: 10.1021/acs.joc.6b02895] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Aza-diketopiperazines (aza-DKPs) represent an underprivileged motif obtained by scaffold hopping of 2,5-diketopiperazines (2,5-DKPs). Herein, we compare the synthesis and the structural and physicochemical properties of aza-DKP 4 vs 2,5-DKP 7. Thus, X-ray and 1H NMR studies show that aza-DKP 4 is a rigid and nonflat scaffold like the 2,5-DKP 7. Moreover, the replacement of one Cα-stereogenic center by a nitrogen atom results in a significant improvement of both the water solubility and the microsomal stability.
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Affiliation(s)
- Pierre Regenass
- Laboratoire d'Innovation Thérapeutique, LabEx MEDALIS, Faculté de Pharmacie, UMR7200 CNRS/Université de Strasbourg , 74 route du Rhin, 67412 Illkirch, France
| | - Damien Bosc
- Laboratoire d'Innovation Thérapeutique, LabEx MEDALIS, Faculté de Pharmacie, UMR7200 CNRS/Université de Strasbourg , 74 route du Rhin, 67412 Illkirch, France
| | - Stéphanie Riché
- Laboratoire d'Innovation Thérapeutique, LabEx MEDALIS, Faculté de Pharmacie, UMR7200 CNRS/Université de Strasbourg , 74 route du Rhin, 67412 Illkirch, France
| | - Patrick Gizzi
- Université de Strasbourg, CNRS , Plateforme de Chimie Biologie Intégrative (PCBIS), UMS3286 and LabEx MEDALIS 6700 Strasbourg, France
| | - Marcel Hibert
- Laboratoire d'Innovation Thérapeutique, LabEx MEDALIS, Faculté de Pharmacie, UMR7200 CNRS/Université de Strasbourg , 74 route du Rhin, 67412 Illkirch, France
| | - Lydia Karmazin
- Service de Cristallographie, Institut de Chimie de Strasbourg , BP 296/R8, 67008 Strasbourg, France
| | - A Ganesan
- School of Pharmacy, University of East Anglia , Norwich Research Park, Norwich NR4 7TJ, U.K
| | - Dominique Bonnet
- Laboratoire d'Innovation Thérapeutique, LabEx MEDALIS, Faculté de Pharmacie, UMR7200 CNRS/Université de Strasbourg , 74 route du Rhin, 67412 Illkirch, France
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