tert-butyl((S,1E)-1-((3aR,4R,6aS)-2-methoxy-5-((trimethylsilyloxy)methylene)hexahydro-2H-cyclopenta[b]furan-4-yl)-5-phenylpent-1-en-3-yloxy)dimethylsilane

5-溴戊酸

5-溴戊酰氯

5-bromo-N-ethylpentanamide