tert-butyl (2R)-2-{(1R,2S)-2-methoxy-2-methyl-1-[(triphenylmethylsulfenyl)amino]pentyl}-5-oxo-2,5-dihydro-1H-pyrrole-1-carboxylate

(2S)-2-methoxy-2-methylpentanal

(2S)-2-methoxy-2-methyl-pent-1-ol

(1E,2S)-2-methoxy-2-methylpentanal S-tritylthioxime

tert-butyl (2R)-2-((1R,2S)-2-methoxy-2-methyl-1-{[(R)-(4-methylphenyl)sulfinyl]amino}pentyl)-5-oxo-2,5-dihydro-1H-pyrrole-1-carboxylate