<2S,3S,4R,5R,6(S*),7(R*)>-N-<7-<5-<7-(1,2-dihydro-4-methoxy-1-methyl-2-oxo-3-pyridinyl)-6-methyl-7-oxo-1(E),3(E),5(E)-heptatrienyl>tetrahydro-3,4-dihydroxy-furan-2-yl>-6-methoxy-5,7-dimethyl-2(E),4(E)-heptadienyl>acetamide 、
硫酸二甲酯 在
barium hydroxide octahydrate 、 barium(II) oxide 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 40.0h,
以30 mg的产率得到<2S,3R,4S,5R,6(S*),7(R*)>-N-<7-<5-<7-(1,2-dihydro-4-methoxy-1-methyl-2-oxo-3-pyridinyl)-6-methyl-7-oxo-1(E),3(E),5(E)-heptatrienyl>tetrahydro-3,4-dimethoxy-furan-2-yl>-6-methoxy-5,7-dimethyl-2(E),4(E)-heptadienyl>acetamide