BOC-L-脯氨酸 、 苄胺 以to give 1.2 g (86%) of 2-benzylcarbamoyl-pyrrolidine-1-carboxylic acid tert-butyl ester, which的产率得到tert-butyl 2-(benzylcarbamoyl)pyrrolidine-1-carboxylate
Graphene oxide: a convenient metal-free carbocatalyst for facilitating amidation of esters with amines
作者:Khushbu P. Patel、Eknath M. Gayakwad、Ganapati S. Shankarling
DOI:10.1039/c9nj05283f
日期:——
Herein, we report a grapheneoxide (GO) catalyzed condensation of non-activated esters and amines, that can enable diverse amides to be synthesized from abundant ethyl esters forming only volatile alcohol as a by-product. GO accelerates ester to amide conversion in the absence of any additives, unlike other catalysts. A wide range of ester and amine substrates are screened to yield the respective amides
The invention provides compounds of formula (I):
wherein E, A, B′, R
6
, R
7
, R
8
, and R
9
are defined in the specification which compounds exhibit anticancer activity and are useful for treating cancer.
[EN] COMPOUNDS FOR TREATING TUMORS<br/>[FR] COMPOSES UTILISES POUR TRAITER DES TUMEURS
申请人:WYETH CORP
公开号:WO2005016958A2
公开(公告)日:2005-02-24
The invention provides compounds of formula (I): wherein E, A, B', R6, R7, R8, and R9 are defined in the specification which compounds exhibit anticancer activity and are useful for treating cancer.