First Synthesis of Totally Orthogonal Protected α-(Trifluoromethyl)- and α-(Difluoromethyl)arginines
摘要:
The first synthesis of a series of totally orthogonal protected racemic alpha-(trifluoromethyl)- and alpha-(difluoromethyl)arginines is described. The key steps of the synthesis are the mild guanidinylation procedure and the selective hydrogenation of a CC triple bond in the presence of a Cbz-group.
First Synthesis of Totally Orthogonal Protected α-(Trifluoromethyl)- and α-(Difluoromethyl)arginines
摘要:
The first synthesis of a series of totally orthogonal protected racemic alpha-(trifluoromethyl)- and alpha-(difluoromethyl)arginines is described. The key steps of the synthesis are the mild guanidinylation procedure and the selective hydrogenation of a CC triple bond in the presence of a Cbz-group.
New efficient syntheses of α-diflyoromethyl- and α-trifluoromethyl-ornithine
作者:Sergey N. Osipov、Alexander S. Golubev、Norbert Sewald、Klaus Burger
DOI:10.1016/s0040-4039(97)01344-0
日期:1997.8
A new efficient method far the preparation of ornithine derivatives 3-5 is described. The key step of the synthesis is the regioselective alkylation of imine 2 with propargyl amine 1. (C) 1997 Elsevier Science Ltd.
First Synthesis of Totally Orthogonal Protected α-(Trifluoromethyl)- and α-(Difluoromethyl)arginines
作者:Maurizio Moroni、Beate Koksch、Sergey N. Osipov、Marcello Crucianelli、Massimo Frigerio、Pierfrancesco Bravo、Klaus Burger
DOI:10.1021/jo0009043
日期:2001.1.1
The first synthesis of a series of totally orthogonal protected racemic alpha-(trifluoromethyl)- and alpha-(difluoromethyl)arginines is described. The key steps of the synthesis are the mild guanidinylation procedure and the selective hydrogenation of a CC triple bond in the presence of a Cbz-group.