Iridium-Catalyzed Isomerization/Cycloisomerization/Aromatization of <i>N</i>-Allyl-<i>N</i>-sulfonyl-<i>o</i>-(λ<sup>1</sup>-silylethynyl)aniline Derivatives to Give Substituted Indole Derivatives
We have developed a one-iridium-catalyst system that transforms N-allyl-N-sulfonyl-2-(silylalkynyl)anilinederivatives, which are 1,7-enynes in which both multiple bonds have a heteroatom, to the corresponding substituted indole derivatives via isomerization/cycloisomerization/aromatization. This strategy provides an atom-economical and straightforward synthetic approach to a series of valuable indoles
The intramolecularcyclization of 2‐alkynylanilines mediated by DMSO/SOCl2 was found to afford biologically interesting 3‐methylthioindoles, which are rarely obtained by the exiting methods. DMSO could also be replaced with its deuterated counterpart, enabling the method applicable to the construction of indole skeleton bearing a SCD3 moiety at its 3‐position.
Catalytic Enantioselective Synthesis of N-C Axially Chiral N-(2,6-Disubstituted-phenyl)sulfonamides through Chiral Pd-Catalyzed N-Allylation
作者:Sota Fukasawa、Tatsuya Toyoda、Ryohei Kasahara、Chisato Nakamura、Yuuki Kikuchi、Akiko Hori、Gary J. Richards、Osamu Kitagawa
DOI:10.3390/molecules27227819
日期:——
Recently, catalyticenantioselective syntheses of N-C axially chiral compounds have been reported by many groups. Most N-C axially chiral compounds prepared through a catalytic asymmetric reaction possess carboxamide or nitrogen-containing aromatic heterocycle skeletons. On the other hand, although N-C axially chiral sulfonamide derivatives are known, their catalyticenantioselectivesynthesis is relatively
最近,许多小组报道了 NC 轴向手性化合物的催化对映选择性合成。大多数通过催化不对称反应制备的 NC 轴向手性化合物都具有甲酰胺或含氮芳香杂环骨架。另一方面,虽然 NC 轴向手性磺酰胺衍生物是已知的,但它们的催化对映选择性合成相对未被探索。我们发现,在 ( S , S )-Trost配体-(烯丙基-PdCl) 2催化剂,提供旋转稳定的NC轴向手性N-烯丙基磺胺类药物。此外,主要对映体的绝对立体化学由 X 射线单晶结构分析确定,并考虑了对映选择性的来源。
[EN] COMPOUNDS AS MYT1 INHIBITORS<br/>[FR] COMPOSÉS UTILISÉS COMME INHIBITEURS DE MYT1<br/>[ZH] 作为MYT1抑制剂的化合物