HRID879248

反应详情

EQUATION

反应方程式

HRID 879248 的结构方程式

CONDITIONS

反应条件

温度
100 °C

PROCEDURE

实验过程

24 mg (26 μmol) of N-methyl-L-valyl-N-[(3R,4S,5S)-1-{(2S)-2-[(1R,2R)-3-{[(2S)-1-(benzyloxy)-3-phenylpropane-2-yl]amino}-1-methoxy-2-methyl-3-oxopropyl]pyrrolidin-1-yl}-3-methoxy-5-methyl-1-oxoheptan-4-yl]-N-methyl-L-valinamide sodium trifluoroacetate (intermediate 33) and 33.7 μl of 15% aqueous amber aldehyde acid solution (52 μmol) were dissolved in 953 μl of a 1:1-dioxane/water composition and heated for 1 hour at a temperature of 100° C. After a short cooling period 1.80 mg (29 μmol) of sodium cyanoborohydride were added. The reaction composition was formulated with 0.1 of N hydrochloric acid to pH 3 and heated for 2 hours at a temperature of 100° C. It was reheated again for 2 hours at 100° C. after the same amounts of amber aldehyde acid solution, sodium cyanoborohydride, and hydrochloric acid had been added once again. Afterwards, the reaction composition had been separated directly by means of preparative HPLC. The yield was 15.2 mg (65% o. th.) of the title compound.

WORKUP

后处理

  1. additionwere added
  2. customAfterwards, the reaction composition had been separated directly by means of preparative HPLC