2,6-di-tert-butyl-4-methylphenyl cyclopropanecarboxylate 、
(R)-2-(benzyloxy)-2-[(R)-2,2-dimethyl-1,3-dioxolan-4-yl]acetaldehyde 在
叔丁基锂 作用下,
以
四氢呋喃 为溶剂,
以66%的产率得到1-[(1S,2R)-2-Benzyloxy-2-((R)-2,2-dimethyl-[1,3]dioxolan-4-yl)-1-hydroxy-ethyl]-cyclopropanecarboxylic acid 2,6-di-tert-butyl-4-methyl-phenyl ester