US PATENT SUBCLASS 435 / 47
.~ Preparing compound having a 1-thia-5-aza-bicyclo (4.2.0) octane ring system (e.g., cephalosporin, etc.)

Current as of: June, 1999
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435 /   HD   CHEMISTRY: MOLECULAR BIOLOGY AND MICROBIOLOGY

41  DF  MICRO-ORGANISM, TISSUE CELL CULTURE OR ENZYME USING PROCESS TO SYNTHESIZE A DESIRED CHEMICAL COMPOUND OR COMPOSITION {26}
47.~ Preparing compound having a 1-thia-5-aza-bicyclo (4.2.0) octane ring system (e.g., cephalosporin, etc.) {4}
48  DF  .~.~> Di-substituted in 7-position
49  DF  .~.~> Cephalosporin C
50  DF  .~.~> By acylation of the substituent in the 7-position
51  DF  .~.~> By desacylation of the substituent in the 7-position

DEFINITION

Classification: 435/47

Preparing compound having a 1 -thia -5- aza-bicyclo (4.2.0) octane ring system (e.g., cephalosporin, etc.):

(under subclass 41) Processes wherein the product synthesized contains a 1-thia-5-aza-bicyclo (4.2.0) octane polycyclic ring system, i.e., [figure]