di-tert-butyl 1-((3R,5R)-5-(bromomethyl)-2-oxotetrahydrofuran-3-yl)hydrazine-1,2-dicarboxylate

(S)-2-(9H-Fluoren-9-ylmethoxycarbonyloxy)-3-methyl-butyric acid allyl ester

(2R,3aR,8aS)-1-(Anthracene-9-sulfonyl)-3a-triethylsilanyloxy-1,2,3,3a,8,8a-hexahydro-pyrrolo[2,3-b]indole-2-carboxylic acid allyl ester