Imidazolylmethylbenzophenones as Highly Potent Aromatase Inhibitors
摘要:
Suppression of tumor and plasma estrogen levels by inhibition of aromatase is one of the most effective treatments for postmenopausal breast cancer patients. Starting from an easy, synthetically accessible, benzophenone scaffold, a new class of potent aromatase inhibitors was synthesized, endowed with high selectivity with respect to 17 alpha-hydroxylase/17,20-lyase (CYP17). Compounds 1b and 1d proved to be among the most potent inhibitors described so far.
Highly Diastereoselective Arylation of (<i>S</i>)-Mandelic Acid Enolate: Enantioselective Synthesis of Substituted (<i>R</i>)-3-Hydroxy-3-phenyloxindoles and (<i>R</i>)-Benzylic Acids and Synthesis of Nitrobenzophenones
作者:Santiago Barroso、Gonzalo Blay、Luz Cardona、Isabel Fernández、Begoña García、José R. Pedro
DOI:10.1021/jo0402069
日期:2004.10.1
leads directly to enantiomericallypure (R)-3-hydroxy-3-phenyloxindoles. On the other hand the basic hydrolysis of the dioxolanone moiety in all the arylation products (ortho and para) leads to enantiomericallypuresubstituted (R)-benzylic acids. The oxidative decarboxylation of these latter with oxygen as terminal oxidant in the presence of pivalaldehyde and the Co(III)-Me2opba complex as catalyst gives