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 7-tert-butyl-5-chloro-9a-hydroxy-1,2,3,9a-tetrahydro-cyclopenta[b][1,4]benzodioxin-3a-carboxylic acid methyl ester 、 7-tert-butyl-5-chloro-9a-hydroxy-1,2,3,9a-tetrahydro-cyclopenta[b][1,4]benzodioxin-3a-carboxylic acid methyl ester 、
6-tert-butyl-8-chloro-9a-hydroxy-1,2,3,9a-tetrahydrocyclopenta[b][1,4]benzodioxin-3a-carboxylic acid methyl ester 、 6-tert-butyl-8-chloro-9a-hydroxy-1,2,3,9a-tetrahydrocyclopenta[b][1,4]benzodioxin-3a-carboxylic acid methyl ester