966 966 [(1S,2R,3R,4R,5R,6S,8R,9S,13S,16S,17R,18R)-11-ethyl-5-hydroxy-6,16,18-trimethoxy-4-(4-methoxybenzoyl)-13-(methoxymethyl)-11-azahexacyclo[7.7.2.12,5.01,10.03,8.013,17]nonadecan-8-yl] acetate 966