Acetic acid (2R,4S,6S,8S,10S)-8-[(R)-4-(4-methoxy-benzyloxy)-3-methyl-2-methylene-butyl]-10-methyl-2-(2-oxo-ethyl)-10-triethylsilanyloxy-1,7-dioxa-spiro[5.5]undec-4-yl ester

Triethyl-[(S)-3-(naphthalen-2-ylmethoxy)-1-(S)-1-oxiranylmethyl-propoxy]-silane