Patent classifications
C
CHEMISTRY; METALLURGY
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C07
ORGANIC CHEMISTRY
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C07J
STEROIDS
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7/00
Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms
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C07J7/0005
not substituted in position 21
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C07J7/0065
substituted in position 20 by an OH group free esterified or etherified
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C07J7/007
not substituted in position 17 alfa
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