(1R,7aS)-1-Dimethoxymethyl-1-methyl-tetrahydro-pyrrolo[1,2-c]oxazol-3-one

(3R,4R,4aS)-4-Benzyloxy-3-hex-1-ynyl-4-methyl-hexahydro-pyrrolo[1,2-c][1,3]oxazine

(7R,8R,8aS)-8-Benzyloxy-6-[(R)-1-iodo-2-methyl-hex-(Z)-ylidene]-8-methyl-octahydro-indolizin-7-ol

[(S)-2-((1R,2R,5R)-1-Benzyloxy-2-hydroxy-1,5-dimethyl-non-3-ynyl)-pyrrolidin-1-yl]-acetonitrile