56083-50-2

C-2801X Antibiotic C-2801X 3'-Hydroxycephamycin B (7S)-7-[[(R)-5-Amino-5-carboxy-1-oxopentyl]amino]-3-[[[3-(3,4-dihydroxyphenyl)-2-methoxy-1-oxo-2-propenyl]oxy]methyl]-7-methoxycepham-3-ene-4-carboxylic acid (6R)-7t-((R)-5-amino-5-carboxy-pentanoylamino)-3-[3-(3,4-dihydroxy-phenyl)-2-methoxy-acryloyloxymethyl]-7c-methoxy-8-oxo-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid (6R,7S)-7α-[[(R)-5-Amino-5-carboxy-1-oxopentyl]amino]-3-[[[3-(3,4-dihydroxyphenyl)-2-methoxy-1-oxo-2-propenyl]oxy]methyl]-7-methoxy-8-oxo-5-thia-1-azabicyclo[4.2.0]octa-2-ene-2-carboxylic acid 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 7-[[(5R)-5-amino-5-carboxy-1-oxopentyl]amino]-3-[[[3-(3,4-dihydroxyphenyl)-2-methoxy-1-oxo-2-propen-1-yl]oxy]methyl]-7-methoxy-8-oxo-, (6R,7S)-