temperature. Further reaction with alkyl halides led to functional unsymmetrically substituted alkyldiorganostannanes, R12R2SnH. Tin hydrides with an ω-unsaturated substituent were stable at room temperature. With a 4-pentyl chain, they underwent a specific cyclization process, giving a stannacyclohexane under radical reaction conditions. A tin hydride with a tin−silicon bond could also be prepared.
Compounds having the structure or their salts:
are used to treat or reduce le likelihood of acquiring androgen-dependent diseases, such as prostate cancer, benign prostatic hyperplasia, polycystic ovarian syndrome, acne, hirsutism, seborrhea, androgenic alopecia and male baldness. They can be formulated together with pharmaceutically acceptable diluent or carrier or otherwise made into any pharmaceutical dosage form. Some of these compounds having tissue-specific antiandrogenic activity and tissue-specific androgenic activity can be used to treat or reduce the risk of developing diseases related to loss of androgenic stimulation. Combinations with other active pharmaceutical agents are also disclosed.
DERIVATIVES OF 4-(2-AMINO-1-HYDROXIETHYL)PHENOL AS AGONISTS OF THE B2 ADRENERGIC RECEPTOR
申请人:Puig Duran Carlos
公开号:US20090082378A1
公开(公告)日:2009-03-26
This present disclosure relates to compounds of formula (I):
The present disclosure also relates to pharmaceutical compositions comprising the compounds of formula (I) and to their methods of use in therapy.
Note on the Preparation of Alkyl- and Oxaälkyl-dimethylsilanols
作者:László Boksányi、Olivier Liardon、Ervin sz. Kováts
DOI:10.1002/hlca.19760590302
日期:1976.4.21
The preparation of a series of alkyl- and (mono-, di- and poly-) oxaälkyl-dimethylsilanols is described. The stability of these compounds on storage is considerably increased by previous filtration through a silica gel column.