(1S,2R,8R,8aS)-octahydro-1,2-bis(phenylmethoxy)-8-[[(1,1-dimethylethyl)diphenylsilyl]oxy]-indolizine

(R)-4-((2S,3S,4R)-3,4-bis(benzyloxy)pyrrolidin-2-yl)-4-((tert-butyldiphenylsilyl)oxy)butan-1-ol

(1R,7aS)-1-[3-[(4-methoxyphenyl)methoxy]propyl]-5,7a-dihydro-1H,3H-pyrrolo[1,2-c]oxazol-3-one

(4S,5R)-3-allyl-5-(3-((4-methoxybenzyl)oxy)propyl)-4-vinyloxazolidin-2-one

(3aR,8aS,9S,9aR)-2,2-dimethyloctahydro-[1,3]dioxolo[4,5-f]indolizin-9-yl methanesulfonate