21,25-Epoxy-3H-pyrido[2,1-c][1,4]oxaazacyclononacosine-1,26,27(29H)-trione,6-ethyl-4,7,8,9,10,13,14,15,16,17,18,19,20,21,22,23,24,25,30,31,32,32a-docosahydro-7,13,15,17,19,25-hexahydroxy-3-(4-hydroxy-1,3-dimethyl-1-penten-1-yl)-8,10,12,18,24-pentamethyl-