Enantioselective alkynylation of aromatic and heteroaromatic aldehydes catalyzed by resin-supported oxazolidine–titanium complexes
作者:Jincheng Mao、Zhijian Bao、Jun Guo、Shunjun Ji
DOI:10.1016/j.tet.2008.08.003
日期:2008.10
Highlyenantioselective asymmetric addition of terminal alkynes to various aromatic and heteroaromatic aldehydescatalyzed by the readilyavailable, low-cost, and reusable resin-supported oxazolidine 4 together with Ti(OiPr)4 provides the chiral propargylic alcohols with good to excellent yields (up to 98%) and enantioselectivities (up to 95%). The immobilized catalyst can be recovered and used for
易于获得,廉价且可重复使用的树脂负载的恶唑烷4与Ti(O i Pr)4一起催化,将末端炔烃高度对映体选择性地不对称地加成到各种芳族和杂芳族醛中,从而使手性炔丙醇具有良好的收率(优异的收率)(高达98%)和对映选择性(高达95%)。固定的催化剂可以回收并使用五个循环。
PHARMACEUTICAL COMPOUNDS
申请人:Bell Mark Peter
公开号:US20120238541A1
公开(公告)日:2012-09-20
The invention relates to a series of compounds with particular activity as inhibitors of the serine-threonine kinase AKT. Also provided are pharmaceutical compositions comprising same as well as methods for treating cancer.
The invention relates to a series of compounds with particular activity as inhibitors of the serine-threonine kinase AKT. Also provided are pharmaceutical compositions comprising same as well as methods for treating cancer.
The invention relates to a series of compounds with particular activity as inhibitors of the serine-threonine kinase AKT. Also provided are pharmaceutical compositions comprising same as well as methods for treating cancer.