FIELD: organic chemistry, chemical technology.
SUBSTANCE: invention relates to novel method for synthesis of 3β-acetoxy-20,20-dimethoxynortaraxastane of the formula (1): 
. Method is carried out by interaction of 3β-acetoxy-20-methylenetaraxastane in chloroform solution with ozone excess in the mole ratio 3β-acetoxy-20-methylenetaraxastane : ozone = 1:1.5 with addition of methanol, at room temperature and stirring. The yield of the end product is 68%.
EFFECT: improved method of synthesis.
2 cl, 1 ex
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