This invention provides compounds of formula (I):
wherein R
1a
, R
1b
, R
1c
, R
2a
, R
2b
, R
2c
, and R
2d
have values as described in the specification, useful as inhibitors of HDAC6. The invention also provides pharmaceutical compositions comprising the compounds of the invention and methods of using the compositions in the treatment of proliferative, inflammatory, infectious, neurological or cardiovascular diseases or disorders.
A short enantioselective and protecting group free access to the novel antibiotic platensimycin is reported. The crucial stereogenic information is provided by iridium catalyzed asymmetric hydrogenation.
A highly enantioselective copper-catalyzed propargylic amination starting from benzylicallylic amines has been developed with a new chiral N,N,P ligand. A series of N-tethered 1,6-enynes were synthesized in good to excellent yields with excellent enantioselectivities. Utilization of transition metal-catalyzed cycloisomerization of 1,6-enynes provides several enantioselectively enriched chiral five-membered
Me<sub>2</sub>(CH<sub>2</sub>CH)SiCN: a bifunctional ethylene equivalent for Diels–Alder reaction based controllable tandem synthesis
作者:Wen-Biao Wu、Bo-Shuai Mu、Jin-Sheng Yu、Jian Zhou
DOI:10.1039/d2sc00147k
日期:——
equivalent for the Diels–Alder (DA) reaction. The use of this reagent enables the controllable synthesis of value-added cyclohexenyl ketones or 2-acyl cyclohexancarbonitrile derivatives through a five- or six-step tandem sequence based on a Wittig/cyanosilylation/DA reaction/retro-cyanosilylation/isomerization sequence that involves a temporary silicon-tethered intramolecular DA reaction.
双功能甲硅烷基试剂 Me 2 (CH 2 CH)SiCN 已被开发为用于 Diels-Alder (DA) 反应的新型乙烯等价物。该试剂的使用能够通过基于 Wittig/氰基硅烷基化/DA 反应/逆氰基硅烷基化/异构化序列的五步或六步串联序列可控合成增值的环己烯基酮或 2-酰基环己腈衍生物,其中包括临时的硅束缚分子内 DA 反应。
SUBSTITUTED HYDOXAMIC ACIDS AND USES THEREOF
申请人:Calderwood Emily F.
公开号:US20140243334A1
公开(公告)日:2014-08-28
This invention provides compounds of formula (I):
wherein R
1a
, R
1b
, R
1c
, R
2a
, R
2b
, R
2c
, and R
2d
have values as described in the specification, useful as inhibitors of HDAC6. The invention also provides pharmaceutical compositions comprising the compounds of the invention and methods of using the compositions in the treatment of proliferative, inflammatory, infectious, neurological or cardiovascular diseases or disorders.