摘要:
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.
摘要:
The invention relates to novel sterol derivatives, the preparation method thereof, pharmaceutical compositions containing them and use thereof for treating diseases involving transformed astrocyte cells or for treating malignant haemopathies. The invention in particular relates to the treatment of glioblastoma multiforme, as well as of other cancers, such as lymphomas, neuroblastomas and melanomas.
摘要:
This invention is related to chemistry and pharmacy and, in particular, to the production of novel molecular entities: esterane derivatives fused with spirostanes rings, acting upon the Central Nervous Systems (CNS). From diosgenin, a naturally occurring sapogenin, with some subsequent transformations thereof, spirosteroid derivatives of the I-IV general formula can be obtained, with a cyclopentaneperhydrophenantrene nucleus fused to a 25R-spirostanes nucleus. Such molecular entities have an anti-inflammatory and anti-glutamatergic actions that can be used to treat inflammatory, cerebrovascular, neurodegenerative, neuropsychiatric, and neurologic diseases.
摘要:
The present invention relates to processesfor obtaining abirateroneand derivatives thereof, such as abiraterone acetate, by means of a Suzuki coupling through a steroid borate of general formula (IV) or a C-C coupling through a steroid hydrazone of general formula (II), as well as to intermediates useful in said processes.
摘要:
A method as well as new intermediates for preparing Ulipristal acetate (a compound I) and a method for preparing the new intermediates are provided. The intermediate in a constitutional formula IV is conductive to reacting with methyl lithium or methyl Grignard reagent, a protective group is easy to be removed after a reaction, side reactions are few, a mid-term treatment is simple, the reagents used are cheap, costs are low and the yield is high, if a compound in a constitutional formula V is obtained by the reaction of a compound in a constitutional formula III and the intermediate in the constitutional formula IV, the yield of a two-step reaction is 75%, a purity is above 98%.