Synthesis and biological activity of 3,4-dihydroquinazolines for selective T-type Ca2+ channel blockers
摘要:
We have synthesized 3,4-dihydroquinazoline derivatives for the potent and selective T-type Ca2+ channel blockers and evaluated for their inhibitory activities against two subtypes T-type Ca2+ channels and N-type Ca2+ channels. Among them, 5b (KYS05044, IC50 = 0.56 +/- 0.10 muM) was identified as potent T-type Ca2+ channel blocker with in vitro selectivity profile at meaningful level (T/N-type, SI = >100). (C) 2004 Elsevier Ltd. All rights reserved.
[DE] 2-(3-PHENYL-2-PIPERAZINYL-3,4-DIHYDROCHINAZOLIN-4-YL) ESSIGSÄUREN ALS ANTIVIRALE MITTEL, SPEZIELL GEGEN CYTOMEGALIEVIREN [EN] 2-(3-PHENYL-2-PIPERAZINYL-3,4-DIHYDROQUINAZOLINE-4-YL) ACETIC ACIDS AS ANTI-VIRAL AGENTS, ESPECIALLY AGAINST CYTOMEGALO VIRUSES [FR] ACIDES 2-(3-PHENYL-2-PIPERAZINYL-3,4-DIHYDROCHINAZOLINO-4-YL)-ACETIQUES SERVANT D'AGENTS ANTIVIRAUX, NOTAMMENT CONTRE DES CYTOMEGALOVIRUS
Conjugated heterocumulenes. Synthesis of conjugated carbodiimides and their facile conversion via intramolecular cycloaddition into nitrogen heterocycles, quinoline and pyrido[2,3-b]indole (α-carboline) derivatives
A convenient method is described for the synthesis of conjugated carbodiimides and their application to nitrogen heterocycle synthesis via electrocyclisationâintramolecular DielsâAlder reaction.
[DE] 2-(3-PHENYL-2-PIPERAZINYL-3,4-DIHYDROCHINAZOLIN-4-YL) ESSIGSÄUREN ALS ANTIVIRALE MITTEL, SPEZIELL GEGEN CYTOMEGALIEVIREN<br/>[EN] 2-(3-PHENYL-2-PIPERAZINYL-3,4-DIHYDROQUINAZOLINE-4-YL) ACETIC ACIDS AS ANTI-VIRAL AGENTS, ESPECIALLY AGAINST CYTOMEGALO VIRUSES<br/>[FR] ACIDES 2-(3-PHENYL-2-PIPERAZINYL-3,4-DIHYDROCHINAZOLINO-4-YL)-ACETIQUES SERVANT D'AGENTS ANTIVIRAUX, NOTAMMENT CONTRE DES CYTOMEGALOVIRUS
申请人:BAYER HEALTHCARE AG
公开号:WO2004072048A1
公开(公告)日:2004-08-26
Die Erfindung betrifft Dihydrochinazoline und Verfahren zu ihrer Herstellung, ihre Verwendung zur Behandlung und/oder Prophylaxe von Krankheiten sowie ihre Verwendung zur Herstellung von Arzneimitteln zur Behandlung und/oder Prophylaxe von Krankheiten, insbesondere zur Verwendung als antivirale Mittel, insbesondere gegen Cytomegaloviren.
A facile and efficient carbodiimide-mediated synthesis of dihydroquinazolines via a tandem nucleophilic addition-intramolecular hetero conjugate addition annulation strategy
作者:Takao Saito、Kensaku Tsuda、Yoji Saito
DOI:10.1016/0040-4039(95)02130-2
日期:1996.1
A novel and efficient method is described for the synthesis of dihydroquinazoline derivatives which involves initial addition of a nucleophile (alcohol, amine and thiol) to the carbodiimide cumulenic system followed by intramolecular heteroconjugateadditionannulation.
2-(3-Phenyl-2-piperazinyl-3,4-dihydroquinazolin-4-yl)acetic acids as antiviral agents, especially against cytomegaloviruses
申请人:Wunberg Tobias
公开号:US20070066622A1
公开(公告)日:2007-03-22
The invention relates to dihydroquinazolines and methods for the production thereof, the use thereof in the treatment and/or prophylaxis of diseases, in addition to the use thereof in the production of medicaments in the treatment and/or prophylaxis of diseases, especially for use as anti-viral agents, especially against cytomegalo viruses.
Intramolecular heteroconjugate addition of heterocumulenes to α,β-unsaturated carbonyl compounds promoted by the CS2/TBAF system
作者:Alberto Tárraga、Pedro Molina、Juan Luis López
DOI:10.1016/s0040-4039(00)00756-5
日期:2000.6
dihydroquinazoline-2-thione and 4H-3,1-benzothiazine-2-thione derivatives by intramolecular heteroconjugate addition of carbodiimides or isothiocyanates bearing one o-substituted α,β-unsaturatedcarbonyl fragment promoted by the CS2/TBAF system.
我们描述了一种新的制备二氢喹唑啉-2-硫酮和4 H -3,1-苯并噻嗪-2-硫酮衍生物的新方法,该方法是通过碳二亚胺或异硫氰酸酯的分子内杂合物加成,该碳二亚胺或异硫氰酸酯带有一个由o取代的α-β-不饱和羰基片段。 CS 2 / TBAF系统。