C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
195/89, 260/335.
C07F 7/10 (2006.01) C07D 205/08 (2006.01) C07D 303/48 (2006.01) C07D 405/12 (2006.01)
Patent
CA 2002045
4-17289/+ Process for the preparation of optically active acyloxyazetidinones Abstract Compounds of the formula Image (I), in which R1 is hydrogen or lower alkyl, R2 is hydrogen or a hydroxyl protective group R2' and R3 is substituted or unsubstituted phenyl or lower alkyl can be prepared in a three-stage process from readily accessible .beta.-lactam starting materials.
Kalvoda Jaroslav
Kessler Martin
Lattmann Rene
Ramos Gerardo
Ag Ciba-Geigy
Fetherstonhaugh & Co.
Kalvoda Jaroslav
Kessler Martin
Lattmann Rene
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