US PATENT SUBCLASS 435 / 55
.~.~.~ Acting at 17-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}
52  DF  .~ Preparing compound containing a cyclopentanohydrophenanthrene nucleus; nor-, homo-, or D-ring lactone derivatives thereof {4}
54  DF  .~.~ Acting on D-ring {2}
55.~.~.~ Acting at 17-position {1}
56  DF  .~.~.~.~> Hydroxylating at 17-position

DEFINITION

Classification: 435/55

Acting at 17-position:

(under subclass 54) Processes wherein the product synthesized is formed by biochemical transformation at the 17-position.

(1) Note. This subclass includes cleavage of the 17-side chain with the formation of keto or hydroxyl groups at the cleaved position.