反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
CONDITIONS
反应条件
- 温度
- 80 °C
PROCEDURE
实验过程
A solution of tert-butyl ((2S,3R)-1-((2S,4R)-2-(((1R,2S)-1-((cyclopropylsulfonyl)carbamoyl)-2-vinylcyclopropyl)carbamoyl)-4-hydroxypyrrolidin-1-yl)-3,5-dimethyl-1-oxonon-8-en-2-yl)carbamate (9.5 g, 15.21 mmol) in DCE (2500 ml) was sparged with nitrogen for 30 min. and then Hoveyda-Grubbs Catalyst 2nd Generation (0.574 g, 0.912 mmol) was added and the reaction heated to 80° C. for 2 hrs then cooled down to 45° C. and stirred for 2 days. The reaction was concentrated and purified by flash chromatography on silica gel (20-60% Acetone in hexanes) to give the product tert-Butyl((2R,6S,7R,13aS,14aR,16aS,Z)-14a-((cyclopropylsulfonyl)carbamoyl)-2-hydroxy-7,9-dimethyl-5,16-dioxo-1,2,3,5,6,7,8,9,10,11,13a,14,14a,15,16,16a-hexadecahydrocyclopropa[e]pyrrolo[1,2-a][1,4]diazacyclopentadecin-6-yl)carbamate (7 g). MS: MS m/z 597.35 (M++1).
WORKUP
后处理
- temperaturethen cooled down to 45° C.
- concentrationThe reaction was concentrated
- custompurified by flash chromatography on silica gel (20-60% Acetone in hexanes)