甲醇 、
ethyl-(bis-O-methanesulfonyl-2,3-dideoxy-α-D-erythro-hex-2-enopyranoside) 、
丙酮 、 alkaline earth salt of/the/ methylsulfuric acid 、 alkaline earth salt of/the/ methylsulfuric acid 生成 (2
S)-
trans-2-ethoxy-6-methanesulfonyloximethyl-tetrahydro-pyran