Synthetic Studies on Selective, Proapoptotic Isomalabaricane Triterpenoids Aided by Computational Techniques
作者:Yaroslav D. Boyko、Christopher J. Huck、Shang Ning、Alexander S. Shved、Cheng Yang、Tiffany Chu、Emily J. Tonogai、Paul J. Hergenrother、David Sarlah
DOI:10.1021/jacs.0c12569
日期:2021.2.3
The isomalabaricanes comprise a large family of marine triterpenoids with fascinating structures that have been shown to be selective and potent apoptosis inducers in certain cancer cell lines. In this article, we describe the successful total syntheses of the isomalabaricanes stelletin A, stelletin E, and rhabdastrellic acid A, as well as the development of a general strategy to access other natural
异马拉巴烷包括一大类海洋三萜类化合物,具有迷人的结构,已被证明是某些癌细胞系中选择性和有效的细胞凋亡诱导剂。在这篇文章中,我们描述了异马拉巴烷类 stelletin A、stellin E 和 Rhabdastrellic acid A 的成功全合成,以及开发获取这一独特家族中其他天然产物的一般策略。在这一努力中使用了高通量实验和计算化学方法。对 stelletin A 的初步构效关系研究揭示了异马拉巴烷的 trans-syn-trans 核心基序对其细胞毒活性至关重要。
Correction to “Synthetic Studies on Selective, Proapoptotic Isomalabaricane Triterpenoids Aided by Computational Techniques”
作者:Yaroslav D. Boyko、Christopher J. Huck、Shang Ning、Alexander S. Shved、Cheng Yang、Tiffany Chu、Emily J. Tonogai、Paul J. Hergenrother、David Sarlah
DOI:10.1021/jacs.1c07261
日期:2021.8.11
document that reflects this correction is also available. The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/jacs.1c07261. (Corrected file) Detailed experimental procedures, spectroscopic data, computational data, and 1H and 13C NMR spectra (PDF) (Corrected file) Detailed experimental procedures, spectroscopic data, computational data, and 1H and 13C NMR spectra
图 2c 和第 2140 页上的随附文本以及 SI 错误地说明了 AD-mix-α 的使用。AD-mix-β 用于从11到 (+)- 13的转化。绘制的所有结构都是正确的,所有结论保持不变。还提供了反映此更正的修订支持信息文件。支持信息可在 https://pubs.acs.org/doi/10.1021/jacs.1c07261 免费获得。 (更正文件)详细的实验程序、光谱数据、计算数据以及1 H 和13 C NMR 光谱 (PDF)(更正文件)详细的实验程序、光谱数据、计算数据以及1 H 和13 C NMR 光谱 (PDF) 大多数电子支持信息文件无需订阅 ACS 网络版即可获得。此类文件可以按文章下载用于研究用途(如果相关文章有公共使用许可,则该许可可能允许其他用途)。可以通过 RightsLink 许可系统的请求从 ACS 获得许可用于其他用途:http://pubs.acs.or
[EN] EZH2 INHIBITORS AND USES THEREOF<br/>[FR] INHIBITEURS DE EZH2 ET LEURS UTILISATIONS
申请人:PIRAMAL ENTPR LTD
公开号:WO2015110999A1
公开(公告)日:2015-07-30
The present invention provides compound of formula 1, or an isotopic form, a stereoisomer, a tautomer, a pharmaceutically acceptable salt, a solvate, a polymorph, a prodrug, S-oxide or N-oxide thereof. The invention also relates toprocesses for their preparation, to pharmaceutical compositions containing them and use of the compound of formula 1, in the treatment of diseases or disorders mediated by EZH2 (enhancer of zeste homolog 2), particularly cancer.
Asymmetric Retro-Claisen Reaction by Synergistic Chiral Primary Amine/Palladium Catalysis
作者:Yanfang Han、Long Zhang、Sanzhong Luo
DOI:10.1021/acs.orglett.9b02491
日期:2019.9.20
We described herein a chiral primaryamine/palladium catalyzed asymmetric retro-Claisen reaction of β-diketones with salicylic carbonates. A series of chiral α-alkylated ketones and macrolides were obtained with good yields and excellent enantioselectivities upon a sequence of decarboxylative benzylation, retro-Claisen cleavage, and enamine protonation. This strategy features broad substrate scope
1,1-Disubstituted-2,3,4,9-tetrahydro-1<i>H</i>-pyrido[3,4-<i>b</i>]indolecarboxylic acid esters and ketones. The base catalyzed transformation of 1-(2′,3′,4′,9′-tetrahydrospiro[cyclohexane-1,1′-[1<i>H</i>]pyrido[3,4-<i>b</i>]indol]-2-yl)alkanones into 2-(4,9-dihydro-3<i>H</i>-pyrido[3,4-<i>b</i>]indol-1-yl)-1 -alkylcyclohexanols
作者:George Bobowski、John Shavel
DOI:10.1002/jhet.5570220643
日期:1985.11
with cyclic β-keto esters2 under azeotropic conditions followed by acid-catalyzed ring closure of the resulting enamines 3 gave 2′,3′,4′,9′-tetrahydrospiro[piperidine-3,1′,-[1H]pyrido[3,4-b]indole] -4-carboxylic acid alkyl esters4. Condensation of 1 with 2-acylcycloalkanones 8 gave two types of enamines, 10 and 11, respectively. Enamines 10 on treatment with acid gave 1-(2′,3′,4′,9′-tetrahydro-3H-pyrido[3