Class / Patent application number | Description | Number of patent applications / Date published |
552515000 | Nitrogen bonded directly to the cyclopentanohydrophenanthrene ring system | 6 |
552516000 | The nitrogen is double bonded to the cyclopentanohydrophenanthrene ring system | 1 |
552518000 | Additional nitrogen bonded directly to the nitrogen (e.g., hydrazones, etc.) | 1 |
20110130581 | Method and intermediates for preparing 2-alkoxy and 2-aryloxy estrogen compounds - The present invention relates to 2-alkoxy and 2-aryloxyestrogen compounds, and the intermediate compounds prepared during the preparation thereof, which intermediate compounds are useful intermediates in the preparation of certain physiologically active compounds. | 06-02-2011 |
552521000 | The nitrogen is bonded directly at the 3-position | 4 |
20100160657 | SYNTHETIC MIMICS OF MAMMALIAN CELL SURFACE RECEPTORS: METHOD AND COMPOSITIONS - The present invention relates to new synthetic receptors. More particularly, the present invention relates to methods for synthesizing preferred membrane-binding elements, preferably cholesterylamine derivatives, including 3β-amino-5-cholestene (3β-cholesterylamine) and related 3β-halides through i-steroid and retro-i-steroid rearrangements. The invention further relates to use of the synthetic receptors for delivering a protein, peptide, drug, prodrug, lipid, nucleic acid, carbohydrate or small molecule into a target cell via receptor-mediated endocytosis. According to the invention, novel synthetic mimics of cell surface receptors have been designed and methods for use of the same are disclosed. | 06-24-2010 |
20110178317 | MEDICINAL APPLICATIONS OF BENZOIC ACID HYDRAZONES SYNTHESIZED ON THE BASIS OF STEROIDAL TIGOGENIN - Novel benzoic acid hydrazones of 5α-androstan-3,17-dione have been prepared on the basis of steroidal tigogenin of the plant | 07-21-2011 |
20120277448 | PREPARATION METHOD FOR 3BETA-ARACHIDYLAMIDO-7ALPHA, 12ALPHA, 5BETA-CHOLAN-24-CARBOXYLIC ACID - A method for preparing 3β-arachidylamido-7α,12α,5β-cholan-24-carboxylic acid represented by the following formula V is disclosed, which includes the following steps: converting cholic acid to the compound of formula III by acylation reaction and azidation reaction, reducing the compound of formula III to the compound of formula IV and in the end acylating the compound of formula IV with arachidoyl chloride to get the compound of formula V. The method avoids the use of protection groups. | 11-01-2012 |
20130338383 | PREGNANOLONE DERIVATIVES SUBSTITUTED IN 3ALPHA-POSITION WITH THE CATIONIC GROUP, METHOD OF THEIR PRODUCTION, USAGE AND PHARMACEUTICAL PREPARATION INVOLVING THEM - Pregnanolone derivatives, substituted in 3 alpha-position with the cationic group, of general formula I, and a method of the production of these compounds and their utilization for treatment of neuropsychiatric disorders related to imbalance of glutamatergic neurotransmitter system, such as ischemic damage of CNS, neurodegenerative changes and disorders of CNS, affective disorders, depression, post traumatic stress disorder, and other diseases related to stress, anxiety, schizophrenia, and psychotic disorders, pain, addictions, multiple sclerosis, epilepsy, and gliomas. The compounds are also used for production of veterinary and human pharmaceutical preparation for treatment of above mentioned diseases and for production of pharmaceutical preparations containing these compounds. | 12-19-2013 |
552522000 | The nitrogen is bonded directly at the 17-position | 1 |
20140094619 | ANDROSTANE AND PREGNANE STEROIDS WITH POTENT ALLOSTERIC GABA RECEPTOR CHLORIDE IONOPHORE MODULATING PROPERTIES - This invention describes compounds of Structures 1, 2, and 3 and their use as allosteric modulators of the GABA receptor chloride ionophore complex to alleviate stress, anxiety, mood disorders, seizures, depression, treatment of drug and alcohol abuse, memory, premenstrual disorders, and neural system damage. | 04-03-2014 |