HRID1261843
反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
PROCEDURE
实验过程
Condensation of (S)-2-[benzyloxycarbonyl-(2-oxo-ethyl)-amino]-propionic acid methyl ester (intermediate 1) with (S)-2-amino-pentane-1,5-diol in analogy with examples 1/2F produced a nearly statistical mixture of the title compound [light yellow gum, MS: 349.3 (M+H)+] and (3S,5S)-5-hydroxymethyl-3-methyl-4-oxo-octahydro-9-oxa-2,4a-diaza-benzocycloheptene-2-carboxylic acid benzyl ester [light yellow gum, MS:349.3 (M+H)|], which were separated by column chromatography (SiO2; DCM→DCM/MeOH/25% aq. ammonia solution 90:10:0.25).
WORKUP
后处理
- customproduced