2,2-二甲氧基丙烷 、
(3aR,4S,5S,6S,6aS)-4-Azido-5,6-dihydroxy-2,2-dimethyl-tetrahydro-cyclopenta[1,3]dioxole-4-carboxylic acid amide 在
camphor-10-sulfonic acid 作用下,
以
丙酮 为溶剂,
以80%的产率得到(3aS,3bR,6aR,7S,7aS)-7-Azido-2,2,5,5-tetramethyl-tetrahydro-cyclopenta[1,2-d;3,4-d']bis[1,3]dioxole-7-carboxylic acid amide