US PATENT SUBCLASS 435 / 45
.~.~ By acylation of the substituent in 6-position

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}
43  DF  .~ Preparing compound having a 1-thia-4-aza-bicyclo (3.2.0) heptane ring system (e.g., penicillin, etc.) {3}
45.~.~ By acylation of the substituent in 6-position

DEFINITION

Classification: 435/45

By acylation of the substituent in 6-position:

(under subclass 43) Processes wherein the product synthesized is prepared by substituting an acyl group in the 6-position.

(1) Note. The media of the processes included herein must contain the 1-thia- 4-aza-bicyclo heptane ring system compound.