[EN] METHODS FOR SYNTHESIS OF DIARYLMETHANES<br/>[FR] PROCEDES DE SYNTHESE DE DIARYLMETHANES
申请人:DANA FARBER CANCER INST INC
公开号:WO2003031458A1
公开(公告)日:2003-04-17
The present invention relates to dihydrofolate reductase inhibitors having an aromatic group and a heteroaromatic group linked by a methylene group; methods of preparation of dihydrofolate reductase inhibitors that include metal mediated cross coupling of an aromatic halide or heteroaromatic halide with an organozinc reagent; and methods of treatment and pharmaceutical coompositions that utilize or comprise one or more of such dihydrofolate reductase inhibitors.
Synthesis of 3,4-benzo-7-hydroxy-2,9-diazabicyclo[3.3.1]non-7-enes by cyclization of 1,3-bis(silyl enol ethers) with quinazolines
A variety of functionalized 3,4-benzo-7-hydroxy-2,9-diazabicyclo[3.3.1]non-7-enes were prepared by one-pot cyclizations of 1,3-bis(silyl enol ethers) with quinazolines. The mechanism of the cyclization was studied by B3LYP/6-31G(d) density functional theory computations. The products could be functionalized by Suzuki cross-coupling reactions. The reaction of 1,3-bis(silyl enol ethers) with phthalazine afforded open-chain rather than cyclization products.