开发了一个模型反应系统,使用分离的蒜氨酸酶(EC 4.4.1.4)和分离的或合成的烷基(烯)基-L-半胱氨酸亚砜(ACSO)生成纯硫代亚磺酸盐和丙烷硫氧化物(PTSO)。在21-23摄氏度下3小时后,反应收率范围为30%至60%,并将有机硫反应产物萃取到CHCl3中,以制得具有受控组成的产物制剂。纯的硫代亚磺酸盐或PTSO来源于单一的ACSO,而含有四种硫代亚磺酸盐物质的混合物的制备则来自采用二元ACSO底物系统的反应混合物。同源硫代亚磺酸盐和PTSO的身份通过1 H NMR确认。
存活的BCL-2蛋白对于药物化学家而言是有吸引力的但具有挑战性的靶标。它们参与了许多(如果不是全部)肿瘤的发生和发展,使其成为开发新的抗癌疗法的主要靶标。我们介绍了基于从头结构的药物设计方法。利用来自参与BCL-2蛋白质家族相对成员的复合物的已知结构信息,我们使用苯甲酰脲支架设计了拟肽化合物,以再现这些蛋白质之间的关键相互作用。从初始从头词干的文库设计的支架导致与低微摩尔效力(配位体的发现ķ d = 4μM)和选择性BCL-X大号。这些化合物以不同于先前已知的BCL-2抑制剂的结合方式在规范的BH3结合槽中结合。我们的研究结果为针对具有挑战性的蛋白质-蛋白质相互作用类的新型拮抗剂的设计提供了见识。
Benzoyl urea derivatives that are alpha helical peptides mimetics that mimic BH3-only proteins, compositions containing them, their conjugation to cell-targeting-moieties, and their use in the regulation of cell death are disclosed. The benzoyl urea derivatives are capable of binding to and neutralizing pro-survival Bcl-2 proteins. Use of benzoyl urea derivatives in the treatment and/or prophylaxis of diseases or conditions associated with deregulation of cell death are also described.
作者:Carlos Aydillo、Alberto Avenoza、Jesús H. Busto、Gonzalo Jiménez-Osés、Jesús M. Peregrina、María M. Zurbano
DOI:10.1021/ol203068s
日期:2012.1.6
The asymmetric sulfa-Michael additions of appropriately protected l- and d-cysteine derivatives to new chiral dehydroamino acid derivatives have been developed as key steps in the synthesis of biologically important cysteine derivatives, such as lanthionine (Lan) and β-methyllanthionine (MeLan), which are unusual bis-α-amino acids found in the emerging lantibiotics such as nisin.
Benzoyl urea derivatives that are alpha helical peptide mimetics that mimic BH3-only proteins, compositions containing them, their conjugation to cell-targeting moieties, and their use in the regulation of cell death are disclosed. The benzoyl urea derivatives are capable of binding to and neutralising pro-survival Bcl-2 proteins. Use of the benzoyl urea derivatives in the treatment and/or prophylaxis of diseases or conditions associated with deregulation of cell death are also disclosed.
Method Of Synthesizing S-Allyl-Cysteine Analogues And Their Therapeutic Application In Treating Myocardial Infarction
申请人:ZHU YIZHUN
公开号:US20090036534A1
公开(公告)日:2009-02-05
A pharmaceutical composition and methods of producing and application of the composition for treating myocardial infarction of a subject are disclosed. The pharmaceutical composition comprises a therapeutically effective amount of at least one synthesized compound selected from the group consisting of SEC, SPC, SBC, SPEC, SAC, SAMC, and SPRC, and a pharmaceutically acceptable carrier.