| C | SK | CHEMISTRY; METALLURGY |
| C07 | KL | ORGANIC CHEMISTRY [2] |
| C07J | UKL | STEROIDS (seco-steroids C07C) [2] |
|
| C07J 1/00 | HGR | Normal steroids containing carbon, hydrogen, halogen, or oxygen, not substituted in position 17 beta by a carbon atom, e.g. oestrane, androstane [2, 2006.01] |
| C07J 3/00 | HGR | Normal steroids containing carbon, hydrogen, halogen, or oxygen, substituted in position 17 beta by one carbon atom [2, 2006.01] |
| C07J 5/00 | HGR | 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 [2, 2006.01] |
| C07J 7/00 | HGR | Normal steroids containing carbon, hydrogen, halogen, or oxygen, substituted in position 17 beta by a chain of two carbon atoms (C07J 5/00 takes precedence) [2, 2006.01] |
| C07J 9/00 | HGR | 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 [2, 2006.01] |
| C07J 11/00 | HGR | Normal steroids containing carbon, hydrogen, halogen, or oxygen, not substituted in position 3 [2, 2006.01] |
| C07J 13/00 | HGR | Normal steroids containing carbon, hydrogen, halogen, or oxygen, having a carbon-to-carbon double bond from or to position 17 [2, 2006.01] |
| C07J 15/00 | HGR | Stereochemically pure steroids containing carbon, hydrogen, halogen, or oxygen, having a partially or totally inverted skeleton, e.g. retrosteroids, L-isomers [2, 2006.01] |
| C07J 17/00 | HGR | Normal steroids containing carbon, hydrogen, halogen, or oxygen, having an oxygen-containing hetero ring not condensed with the cyclopenta[a]hydrophenanthrene skeleton [2, 2006.01] |
| C07J 19/00 | HGR | Normal steroids containing carbon, hydrogen, halogen, or oxygen, substituted in position 17 by a lactone ring [2, 2006.01] |
| C07J 21/00 | HGR | Normal steroids containing carbon, hydrogen, halogen, or oxygen, having an oxygen-containing hetero ring spiro-condensed with the cyclopenta[a]hydrophenanthrene skeleton [2, 2006.01] |
|
| C07J 31/00 | HGR | Normal steroids containing one or more sulfur atoms not belonging to a hetero ring [2, 2006.01] |
| C07J 33/00 | HGR | Normal steroids having a sulfur-containing hetero ring spiro-condensed or not condensed with the cyclopenta[a]hydrophenanthrene skeleton [2, 2006.01] |
|
| C07J 41/00 | HGR | Normal steroids containing one or more nitrogen atoms not belonging to a hetero ring [2, 2006.01] |
| C07J 43/00 | HGR | Normal steroids having a nitrogen-containing hetero ring spiro-condensed or not condensed with the cyclopenta[a]hydrophenanthrene skeleton [2, 2006.01] |
| C07J 51/00 | ZWE |
|
| C07J 51/00 | HGR | Normal steroids with unmodified cyclopenta[a]hydrophenanthrene skeleton not provided for in groups C07J 1/00-C07J 43/00 [2, 2006.01] |
| C07J 53/00 | HGR | 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 [2, 2006.01] |
|
| C07J 61/00 | HGR | Steroids in which the cyclopenta[a]hydrophenanthrene skeleton has been modified by contraction of only one ring by one or two atoms [2, 2006.01] |
| C07J 63/00 | HGR | Steroids in which the cyclopenta[a]hydrophenanthrene skeleton has been modified by expansion of only one ring by one or two atoms [2, 2006.01] |
| C07J 65/00 | HGR | Steroids in which the cyclopenta[a]hydrophenanthrene skeleton has been modified by contraction of two rings, each by one atom [2, 2006.01] |
| C07J 67/00 | HGR | Steroids in which the cyclopenta[a]hydrophenanthrene skeleton has been modified by expansion of two rings, each by one atom [2, 2006.01] |
| C07J 69/00 | HGR | 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 [2, 2006.01] |
| C07J 71/00 | ZWE |
|
| C07J 71/00 | HGR | Steroids in which the cyclopenta[a]hydrophenanthrene skeleton is condensed with a heterocyclic ring (spiro-condensed heterocyclic rings C07J 21/00, C07J 33/00, C07J 43/00) [2, 2006.01] |
| C07J 73/00 | HGR | Steroids in which the cyclopenta[a]hydrophenanthrene skeleton has been modified by substitution of one or two carbon atoms by hetero atoms [2, 2006.01] |
| C07J 75/00 | HGR | Processes for the preparation of steroids, in general [4, 2006.01] |