HRID865604

反应详情

EQUATION

反应方程式

HRID 865604 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

To a solution of 17-ethyl-1-hydroxy-14-(tert-butyldimethylsiloxy)-12-[2'-(4"-(2"'-phenyl-2"'-oxoethyloxy)-3"-methoxycyclohexyl)-1'-methylvinyl]-23,25-dimethoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9 ]octacos-18-ene-2,3,10,16-tetraone (350 mg) in THF (6.2 ml) at -78° C. was added L-Selectride (342 μl, 1 eq.) dropwise over 30 minutes. The reaction was stirred for a further 15 minutes after addition and then quenched by pouring into saturated aqueous ammonium chloride solution and extracted into ethyl acetate. The organic phase was dried with magnesium sulphate and concentrated. The crude material was purified by column chromatography on silica gel eluting with 60% hexane:40% ethyl acetate to give the desired product (216 mg).

WORKUP

后处理

  1. additionafter addition
  2. customquenched
  3. additionby pouring into saturated aqueous ammonium chloride solution
  4. extractionextracted into ethyl acetate
  5. dry with materialThe organic phase was dried with magnesium sulphate
  6. concentrationconcentrated
  7. customThe crude material was purified by column chromatography on silica gel eluting with 60% hexane