3-chloro-5-(t)butyl-1,2-catechol 在
1-(3,5-bis(trifluoromethyl)phenyl)-3-[(R)-(quinolin-4-yl)((2R,4S,5R)-5-vinylquinuclidin-2-yl)methyl]urea 、
sodium periodate 作用下,
以
二氯甲烷 、
甲基叔丁基醚 、
水 为溶剂,
反应 26.0h,
生成
8-tert-butyl-6-chloro-10a-hydroxy-1,3,4,10a-tetrahydro-2H-dibenzo[b,e][1,4]dioxin-4a-carboxylic acid ethyl ester 、 8-tert-butyl-6-chloro-10a-hydroxy-1,3,4,10a-tetrahydro-2H-dibenzo[b,e][1,4]dioxin-4a-carboxylic acid ethyl ester 、 7-tert-butyl-9-chloro-10a-hydroxy-1,3,4,10a-tetrahydro-2H-dibenzo[b,e][1,4]dioxin-4a-carboxylic acid ethyl ester 、 7-tert-butyl-9-chloro-10a-hydroxy-1,3,4,10a-tetrahydro-2H-dibenzo[b,e][1,4]dioxin-4a-carboxylic acid ethyl ester