HRID2092459

反应详情

EQUATION

反应方程式

HRID 2092459 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

To a suspension of {4′-[3-methyl-4-((R)-1-phenyl-ethoxycarbonylamino)-isoxazol-5-yl]-biphenyl-4-yl}-acetic acid ethyl ester (24 g, 49 mmol) in 3:1 MeOH:H2O (300 mL) was added lithium hydroxide (8.3 g, 198 mmol), and the reaction was stirred at room temperature overnight. The mixture was acidified and partitioned between EtOAc and H2O. The aqueous layer was extracted with EtOAc, and the combined organic layers were washed with H2O, dried over MgSO4, filtered, and concentrated to give the title compound. Mass spec. data (M+H)=457.

WORKUP

后处理

  1. custompartitioned between EtOAc and H2O
  2. extractionThe aqueous layer was extracted with EtOAc
  3. washthe combined organic layers were washed with H2O
  4. dry with materialdried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated