(2S,3S,4aS,5S,6S,8aR,2'R)-2,3-dimethoxy-5-methoxymethoxy-2,3-dimethyl-6-[2'-((R)-oxiranyl)propyl]octahydrobenzo[1,4]dioxine

(3S,4S,7R)-3,7-bis(tert-butyldimethylsilyloxy)-2,6-dimethylheptanethioic acid S-ethyl ester