(1R,9S,12S,15R,16E,19S,21S,22R,23S,25R)-1-hydroxy-12-[(2S,3S,4E)-3-hydroxy-5-[(1R,3R,4R)-4-hydroxy-3-methoxycyclohexyl]-4-methylpent-4-en-2-yl]-21,23-dimethoxy-17,19,25-trimethyl-15-(prop-2-enyl)-4-aza-11,26-dioxatricyclo[20.3.1.04,9]hexacos-16-ene-2,3,10,14-tetraone