METHOD FOR PRODUCING PYRAZOLE CARBOXYLIC ACID DERIVATIVE
申请人:Uenaka Masaaki
公开号:US20140012013A1
公开(公告)日:2014-01-09
Disclosed is a process for producing a pyrazole carboxylic acid derivative which is useful as a significant intermediate of an 11βHSD-1 inhibitor.
A compound represented by the Formula (XI):
is useful as a significant intermediate of an 11βHSD-1 inhibitor,
wherein R
1
and R
2
are each independently hydrogen or substituted or unsubstituted alkyl, R
3
is substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted cycloalkenyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl or substituted or unsubstituted heterocyclyl and R
4
is substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted cycloalkenyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl or substituted or unsubstituted heterocyclyl.
A General Process for the Haloamidation of Olefins. Scope and Mechanism
作者:Yeung、Xuri Gao、E. J. Corey
DOI:10.1021/ja063675w
日期:2006.8.1
with the olefin. The amide group is derived from a nitrile and a water molecule which serve as nucleophiles for the overall three-component reaction. The bromoamidation is general for a broad range of olefins and nitriles. This reaction pathway provides access not only to vicinal bromoamides but also to N-acyl aziridines and oxazolines. From these, many types of amines and amino alcohols can be prepared