、 5-氟吲哚-2-酮 、 、 三氟甲磺酸三甲基硅酯 在
水 、 乙腈 、 乙醇 作用下,
以
六甲基二硅氮烷 为溶剂,
反应 21.0h,
以to give the goal product 15 (1.92 g, 97% yield) as a yellow to brown powder with about 82.1% HPLC purity的产率得到3-(1H-pyrrol-2-ylmethylidene)-1H-indol-2-one
参考文献:
名称:
Processes for the preparation of 3-(pyrrol-2-yl)methylene)-2-pyrrolones using 2-silyloxy-pyrroles
PROCESSES FOR THE PREPARATION OF 3-(PYRROL-2-YL)METHYLENE)-2-PYRROLONES USING 2-SILYLOXY-PYRROLES
申请人:Henscheke Julian P.
公开号:US20130190512A1
公开(公告)日:2013-07-25
The present invention provides for synthetic processes for the making of substituted 3-((pyrrol-2-yl)methylene)-2-pyrrolones, including sunitinib. The present invention also provides for a process of crystallizing substantially pure sunitinib L-malate.