Thieno-[2,3-d]Pyrimidine and Thieno-Pyridazine Compounds and Methods of Use
申请人:Hong Fang-Tsao
公开号:US20100125074A1
公开(公告)日:2010-05-20
The present invention comprises a new class of compounds useful for the prophylaxis and treatment of protein kinase mediated diseases, including inflammation and related conditions. The compounds have a general Formula I
wherein A
1
, A
2
, B, R
2
and R
3
are defined herein. The invention also comprises pharmaceutical compositions including one or more compounds of Formula I, uses of such compounds and compositions for treatment of kinase mediated diseases including rheumatoid arthritis, psoriasis and other inflammation disorders, as well as intermediates and processes useful for the preparation of compounds of Formula I.
Synthesis of P‐Stereogenic Phosphine Oxides via Nickel‐Catalyzed Asymmetric Cross‐Coupling of Secondary Phosphine Oxides with Alkenyl and Aryl Bromides
A nickel-catalyzed asymmetric C(sp2)−P cross-coupling for the synthesis of P-stereogenic phosphine oxides under mild conditions is reported. The enantioselective alkenylation/arylation of racemic secondary phosphine oxides with alkenyl/aryl bromides provided P-stereogenic phosphine oxides with high enantioselectivities of up to 99 % ee.