214330-43-5 Bis[(1S,1'S,4R,4'R)-4,7,7-trimethyl-3-oxo-2-oxabicyclo[2.2.1]heptane-1-carboxylic acid] (9R,10R)-4,8,8-trimethyl-2-oxo-9,10-dihydro-2H,8H-benzo[1,2-b:3,4-b']dipyran-9,10-diyl ester 23248-90-0 (2S,5R,6R)-3,3-dimethyl-7-oxo-6-[(2-phenoxypropanoyl)amino]-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid - (3S)-3,6-diamino-N-[(3S,6Z,9S,12S,15S)-3-[(4R,6S)-2-amino-6-hydroxy-3,4,5,6-tetrahydropyrimidin-4-yl]-6-[(carbamoylamino)methylidene]-9,12-bi 23248-91-1 (2S,5R,6R)-3,3-dimethyl-7-oxo-6-[(2-phenoxybutanoyl)amino]-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid - (3S)-3,6-diamino-N-[(3S,6Z,9S,12S,15S)-3-[(4R,6S)-2-amino-6-hydroxy-3,4,5,6-tetrahydropyrimidin-4-yl]-6-[(carbamoylamino)methylidene]-9,12-bis