Design, synthesis, and structure–activity relationship studies of ATP analogues as DNA gyrase inhibitors
摘要:
We report herein the design and synthesis of ATP-analogues, namely 4-amino-pyrazolo[3,4-d]pyrimidines and 4-amino-pyrazolo[1,5-a][1,3,5]triazines, with DNA gyrase inhibitory activity. Among these series, some compounds exhibited promising antibacterial activity. (C) 2000 Elsevier Science Ltd. All rights reserved.
Structural Determination, DFT Calculation, and Formation Mechanism of Ethyl 2-Cyano-3-alkoxypent-2-enoates Synthesized via Ru-Mediated Coupling Reaction between α,β-Unsaturated Acetals and Cyanoacetate
作者:Hidetake Seino、Takumi Kondo、Chihiro Mochizuki、Ken Tokunaga、Motowo Yamaguchi、Mitsunobu Sato
DOI:10.1246/bcsj.20160279
日期:2017.1.15
synthesized in moderate yields via the coupling reaction between α,β-unsaturated acetals and cyanoacetate, catalyzed by [RuHCl(CO)(PPh3)3]. The E- and Z-isomers were separated and determined by X-ray crystallography for the first time. Structural distortion associated with steric hindrance around the tetrasubstituted alkene moiety was revealed: e.g., the C(carbonyl)–C(α)–C(β) angle expands to about 125°
Novel 5,6-Dihydropyrazolo[3,4-E] [L,4]Diazepin-4 (IH) -One Derivatives for the Treatment of Asthma and Chronic Obstructive Pulmonary Disease
申请人:Henriksson Krister
公开号:US20090054413A1
公开(公告)日:2009-02-26
The present invention provides a compound of a formula (I):
wherein the variables are defined herein; to a process for preparing such a compound; and to the use of such a compound in the treatment of a PDE 4 mediated disease state.
We report herein the design and synthesis of ATP-analogues, namely 4-amino-pyrazolo[3,4-d]pyrimidines and 4-amino-pyrazolo[1,5-a][1,3,5]triazines, with DNA gyrase inhibitory activity. Among these series, some compounds exhibited promising antibacterial activity. (C) 2000 Elsevier Science Ltd. All rights reserved.