HRID1879342

反应详情

EQUATION

反应方程式

HRID 1879342 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

(1R,2R)-2-amino-1-[4-(methylsulfonyl)phenyl]-1,3-propanediol (Compound V wherein R1 is methylsulfonyl) (about 10 g, 0.04077 moles) is reacted at about 0° C. in a reaction vessel with 2,2-dichloro-ethanimidic acid ethyl ester hydrochloride (Compound IV hydrochloride wherein R2 is dichloromethyl and R4 is ethyl) (about 8.6 g, 0.0448 moles) in 1,2-dichloromethane (about 250 mL) containing triethylamine (about 4.1 g, 0.04077 moles). Next, water (about 125 mL) is added. The resulting solids are filtered, then dried to yield (4R,5R)-2-(Dichloromethyl)-4,5-dihydro-5-[4-(methylsulfonyl)phenyl]-4-oxazolemethanol (Compound II wherein R1 is methylsulfonyl and R2 is dichloromethyl).

WORKUP

后处理

  1. filtrationThe resulting solids are filtered
  2. customdried