A simple and efficient method has been developed for the one-pot Mannich reaction of β-amino carbonylcompounds from aromatic aldehydes, aromatic ketones and aromatic amines in the presence of a catalytic amount of bismuth trichloride.
Non-Steroidal Androgen Receptor Modulators, Preparation Process, Pharmaceutical Composition and Use Thereof
申请人:Wang Mingwei
公开号:US20080293808A1
公开(公告)日:2008-11-27
Non-steroidal androgen receptor modulating compounds of the general formula (I), their pharmaceutically acceptable salts, preparation process and pharmaceutically compositions containing the said compounds are disclosed. Such compounds of the general formula (I) or their pharmaceutically acceptable salts can be used for preparing non-steroidal medicines to treat and/or prevent conditions or diseases such as prostatic hyperplasia, prostate cancer, hirsutism, severe hormone-dependent alopecia or acne, etc. as a result of androgen receptor antagonistic activities.
Résumé Rice-husk-supported FeCl3 nano-particles (FeCl3–RiH) were prepared and used as an environmentally friendly catalyst in the synthesis of β-amino carbonyl compounds, 1,8-dioxo-octahydro xanthenes, and bis-indolyl methanes from simple and readily available precursor molecules.