反应详情

Following the procedure as described in PREPARATION 2A and making non-critical variations using 7-chloro-2,3-dihydrobenzo[b][1,4]dioxin-6-ol to replace 3-bromophenol, and 1-(diphenylmethyl)-1H-indole-2,3-dione to replace 1-((5-(trifluoromethyl)furan-2-yl)methyl)indoline-2,3-dione, 3-(7-chloro-6-hydroxy-2,3-dihydro-1,4-benzodioxin-5-yl)-1-(diphenylmethyl)-3-hydroxy-1,3-dihydro-2H-indol-2-one was obtained (18%) as a colorless solid: MS (ES+) m/z 522.1 (M+23), 524.1 (M+23).