乙酸酐 、
bryotoxin A 在
吡啶 作用下,
生成 Acetic acid (3S,5S,8R,9S,10S,11S,13R,14S,17R)-3-((2S,3S,4R,6R)-3,4-diacetoxy-6-methyl-tetrahydro-pyran-2-yloxy)-10-formyl-5,14-dihydroxy-13-methyl-12-oxo-17-(6-oxo-6H-pyran-3-yl)-hexadecahydro-cyclopenta[a]phenanthren-11-yl ester