Synthesis of 1-Iodo-3,13-diacetyl-9-ene-16-one-19,2-lactone,Gibberellic acid, 7-Methyl Ester

• 1-碘-3,13-二乙酰基-9-烯-16-酮-19,2-内酯-7-赤霉酸甲酯的合成