上游原料
3-bromo-2-methyl-1-propenemethyl 4-methyl-3-oxopentanoatemethyl (3S)-3-hydroxy-4-methylpentanoatemethyl (2R)-2-[(1R)-1-hydroxy-2-methylpropyl]-4-methyl-4-pentenoatemethyl (2R,3R)-3-hydroxy-2-isobutyl-4-methylpentanoate(2R,3R)-3-hydroxy-2-isobutyl-4-methylpentanoic acid2-(aminooxy)tetrahydro-2H-pyran; O-tetrahydro-2H-pyran-2-ylhydroxylamine(2R,3R)-3-hydroxy-2-isobutyl-4-methyl-N-(tetrahydro-2H-pyran-2-yloxy)pentanamide(3R,4S)-3-isobutyl-4-isopropyl-1-(tetrahydro-2H-pyran-2-yloxy)-2-azetidinone(2R,3S)-2-isobutyl-4-methyl-3-[(tetrahydro-2H-pyran-2-yloxy)amino]pentanoic acid(2R,3S)-3-[formyl(tetrahydro-2H-pyran-2-yloxy)amino]-2-isobutyl-4-methylpentanoic acid2-Pyridinamine; 2-Pyridinylamine; 2-Aminopyridine(2S,3S)-2-[(tert-butoxycarbonyl)amino]-3-methylpentanoic acid(2R,3S)-3-[formyl(tetrahydro-2H-pyran-2-yloxy)amino]-2-isobutyl-4-methylpentanoic acidtert-butyl (1S,2S)-2-methyl-1-[(2-pyridinylamino)carbonyl]butylcarbamate(2S,3S)-2-amino-3-methyl-N-(2-pyridinyl)pentanamide(2R,3S)-3-[formyl(tetrahydro-2H-pyran-2-yloxy)amino]-2-isobutyl-4-methyl-N-[(1S,2S)-2-methyl-1-[(2-pyridinylamino)carbonyl]butyl]pentanamide
