Faropenem Sodium Salt Hemipentahydrate

(5R,6S)-6-[(1R)-1-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]ethyl]-7-oxo-3-[(2R)-tetrahydro-2-furanyl]-4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid 2-propenyl ester

4-Thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylicacid,6-[1-[[(1,1-dimethylethyl)dimethylsilyl]oxy]ethyl]-7-oxo-3-(tetrahydro-2-furanyl)-,2-propenylester,[5R-[3(R*),5a,6a(R*)]]

prop-2-en-1-yl (5R,6S)-6-[(1R)-1-{[tert-butyl(dimethyl)silyl]oxy}ethyl]-7-oxo-3-(tetrahydrofuran-2-yl)-4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate

Ally(1'R,2''R,5R,6S)-6(1'-tert-butyl dimethyl silyloxyethy)-2-(2''-tetrahydrofuranyl)penem-3-carboxylate

FAROPENEM INTERMEDIATE

4-Thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid, 6-[1-[[(1,1-dimethylethyl)dimethylsilyl]oxy]ethyl]-7-oxo-3-(tetrahydro-2-furanyl)-, 2-propenyl ester, [5R-[3(R*),5a,6a(R*)]]-

Faropenem Sodium Intermediate

(5R,6S)-6-[(R)-1-(TERT-BUTYL-DIMETHYL-SILANYLOXY)-ETHYL]-7-OXO-3-(R)-TETRAHYDRO-FURAN-2-YL-4-THIA-1-AZA-BICYCLO[3.2.0]H