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C07J 1/00
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Normal steroids containing carbon, hydrogen, halogen, or oxygen, not substituted in position 17 beta by a carbon atom, e.g. oestrane, androstane |
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C07J 3/00
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Normal steroids containing carbon, hydrogen, halogen, or oxygen, substituted in position 17 beta by one carbon atom |
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C07J 5/00
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Normal steroids containing carbon, hydrogen, halogen, or oxygen, substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane, and substituted in position 21 by only one singly bound oxygen atom |
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C07J 7/00
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Normal steroids containing carbon, hydrogen, halogen, or oxygen, substituted in position 17 beta by a chain of two carbon atoms |
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C07J 9/00
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Normal steroids containing carbon, hydrogen, halogen, or oxygen, substituted in position 17 beta by a chain of more than two carbon atoms, e.g. cholane, cholestane, coprostane |
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C07J 11/00
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Normal steroids containing carbon, hydrogen, halogen, or oxygen, not substituted in position 3 |
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C07J 13/00
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Normal steroids containing carbon, hydrogen, halogen, or oxygen, having a carbon-to-carbon double bond from or to position 17 |
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C07J 15/00
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Stereochemically pure steroids containing carbon, hydrogen, halogen, or oxygen, having a partially or totally inverted skeleton, e.g. retrosteroids, L-isomers |
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C07J 17/00
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Normal steroids containing carbon, hydrogen, halogen, or oxygen, having an oxygen-containing hetero ring not condensed with the cyclopenta[a]hydrophenanthrene skeleton |
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C07J 19/00
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Normal steroids containing carbon, hydrogen, halogen, or oxygen, substituted in position 17 by a lactone ring |
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C07J 21/00
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Normal steroids containing carbon, hydrogen, halogen, or oxygen, having an oxygen-containing hetero ring spiro-condensed with the cyclopenta[a]hydrophenanthrene skeleton |
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C07J 31/00
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Normal steroids containing one or more sulfur atoms not belonging to a hetero ring |
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C07J 33/00
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Normal steroids having a sulfur-containing hetero ring spiro-condensed or not condensed with the cyclopenta[a]hydrophenanthrene skeleton |
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C07J 41/00
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Normal steroids containing one or more nitrogen atoms not belonging to a hetero ring |
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C07J 43/00
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Normal steroids having a nitrogen-containing hetero ring spiro-condensed or not condensed with the cyclopenta[a]hydrophenanthrene skeleton |
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C07J 51/00
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Normal steroids with unmodified cyclopenta[a]hydrophenanthrene skeleton not provided for in groups |
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C07J 53/00
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Steroids in which the cyclopenta[a]hydrophenanthrene skeleton has been modified by condensation with carbocyclic rings or by formation of an additional ring by means of a direct link between two ring carbon atoms |
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C07J 61/00
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Steroids in which the cyclopenta[a]hydrophenanthrene skeleton has been modified by contraction of only one ring by one or two atoms |
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C07J 63/00
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Steroids in which the cyclopenta[a]hydrophenanthrene skeleton has been modified by expansion of only one ring by one or two atoms |
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C07J 65/00
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Steroids in which the cyclopenta[a]hydrophenanthrene skeleton has been modified by contraction of two rings, each by one atom |
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C07J 67/00
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Steroids in which the cyclopenta[a]hydrophenanthrene skeleton has been modified by expansion of two rings, each by one atom |
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C07J 69/00
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Steroids in which the cyclopenta[a]hydrophenanthrene skeleton has been modified by contraction of only one ring by one atom and expansion of only one ring by one atom |
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C07J 71/00
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Steroids in which the cyclopenta[a]hydrophenanthrene skeleton is condensed with a heterocyclic ring |
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C07J 73/00
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Steroids in which the cyclopenta[a]hydrophenanthrene skeleton has been modified by substitution of one or two carbon atoms by hetero atoms |
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C07J 75/00
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Processes for the preparation of steroids, in general |
