HRID406943
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
- 60 °C
PROCEDURE
实验过程
(2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol (1.5 g; 3.6 mmol) is dissolved in 9 ml of tetrahydrofuran. The solution is heated up to 60° C. 247 μg (3.8 mmol) of methanesulfonic acid are added. After crystallisation the suspension is stirred over night. The crystals are filtered off and dried to obtain 1.73 g (95%) of the title compound (m.p.: 193° C.).
WORKUP
后处理
- customAfter crystallisation the suspension
- filtrationThe crystals are filtered off
- customdried