2-((2R,4aR,7R,8aR)-4,4,7-trimethylhexahydro-4H-benzo[e][1,3]oxathiin-2-yl)hexan-2-ol

2-methylidenehexanoyl chloride

2-butylacrylic acid

N-(2-methylene-hexanoyl)-L-proline

(S)-2-((tert-butyldimethylsilyl)oxy)-N-((S)-1-methoxy-3-methylbutan-2-yl)-N-methylhexanamide