Thiazoleneazetidinones from penicillin sulfoxides

Details Thiazoleneazetidinones from penicillin sulfoxides Thiazoleneazetidinones from penicillin sulfoxides

C - Chemistry, Metallurgy

07

D

260/298.2

C07D 513/04 (2006.01) C07D 499/00 (2006.01)

Patent

CA 1071213

A B S T R A C T There is provided a new group of thiazolene azetidinones such as methyl 3-anilino-4-thia-2,6-diazabicyclo- [3,2,0]hept-2-ene-7-one-6-isopropenyl(and propenyl)acetate, methyl 3-methylamino-4-thia-2,6-diazabicyclo [3.2.0]hept-2-ene- 7-one-6-isopropenyl(and propenyl)acetate and methyl 3-phenoxy- 4-thia-2,6-diazabicyclo [3,2,0]hept-2-ene-7-one-6-isopropenyl- (and propenyl)acetate. These compounds are useful intermedi- ates in the preparation of known cephalosporins or penicillins.

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