A new facile one-pot preparation of pentafluorophenyl (Pfp) and 3,4-dihydro-4-oxo-1,2,3-benzotriazine-3-yl (Dhbt) esters of Fmoc amino acids.
作者:Mogens Havsteen Jacobsen、Ole Buchardt、Tom Engdahl、Arne Holm
DOI:10.1016/0040-4039(91)80788-8
日期:1991.10
A new one-pot procedure for the preparation of pentafluorophenyl and 3,4-dihydro-4-oxo-1,2,3-benzotriazine-3-yl esters of Nα-9-fluorenylmethyloxycarbonyl amino acids bearing no side chain protecting groups is described. The method gives the desired activated esters in high yield and purity without use of the highly allergenic DCC.
对于N五氟苯基和3,4-二氢-4-氧代-1,2,3-苯并三嗪-3-基酯的制备的新的一锅程序α -9-芴氨基酸不带有侧链保护基团是描述。该方法无需使用高度致敏的DCC,即可以高收率和纯度获得所需的活化酯。