Read more (1S,2R,3R,4S,5R,6S,8R,12S,16S,19S,20R,21S)-14-Ethyl-4,6,19-trimethoxy-16-(methoxymethyl)-9,11-dioxa-14-azaheptacyclo[10.7.2.1~2,5~.0~1,13~.0~3,8~.0~8,12~.0~16,20~]docosan-21-ol