17-Ethyl-1-hydroxy-12-[2-(4-hydroxy-3-methoxycyclo hexyl)-1-methylvinyl]-23,25-dimethoxy-13,19,21,27-tetra methyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9]octacos-14,18-diene-2.3,10,16-tetraone|Huagongshe