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以 2 -甲基 - 3-羰基丁酸乙酯为原料 ,经 3-羟基 - 2 -甲基丁酸乙酯和 5 -羟基 - 4-甲基 - 3-羰基己酸叔丁酯合成了3,5 -二羟基 - 4-甲基己酸叔丁酯 ,总收率 38%。
Using ethyl 2 - methyl - 3 - oxobutanoate as a starting material, 3 - hydroxy - 2 - methyl butyrate and tert - butyl 5 - hydroxy - 4 - methyl - 3 - carbonylhexanoate were synthesized. , 5-dihydroxy-tert-butyl 4-methylhexanoate in 38% overall yield.