52341-40-9

(2S,3R,6S,9R,10S,18S)-12-ethyl-9-hydroxy-17-methoxy-14-methyl-5-oxa-12-azahexacyclo[8.7.2.1~2,6~.0~1,11~.0~3,9~.0~14,18~]icosane-4,19-dione (non-preferred name)