(R)-2-[(3aS,4R,6S,6aR)-6-((R)-2-Hydroxy-propyl)-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl]-propionitrile 生成 Benzoic acid (R)-2-[(3aR,4S,6R,6aS)-6-((R)-cyano-methyl-methyl)-2-dimethylamino-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl]-1-methyl-ethyl ester