Aerobic Oxidative Coupling of Arenes and Olefins through a Biomimetic Approach
作者:Beneesh P. Babu、Xu Meng、Jan-E. Bäckvall
DOI:10.1002/chem.201300100
日期:2013.3.25
Arenes and electron‐deficient olefins can be oxidatively coupled through a biomimetic Pd(OAc)2‐catalyzed transformation. CH activation of the arene partner is effected under reaction conditions of low catalyst loading, normal oxygen pressure, and using p‐benzoquinone and iron phthalocyanine as electron‐transfer mediators (ETMs). By controlling catalyst loading, the reaction can be made selective for
Novel non-classical C9-methyl-5-substituted-2,4-diaminopyrrolo[2,3-d]pyrimidines as potential inhibitors of dihydrofolate reductase and as anti-opportunistic agents
作者:Aleem Gangjee、Jie Yang、Sherry F. Queener
DOI:10.1016/j.bmc.2006.09.008
日期:2006.12
followed by ring closure of the nitro adducts via a Nef reaction. The compounds were evaluated as inhibitors of DHFR from Pneumocystis carinii (pc), Toxoplasma gondii (tg), Mycobacterium avium (ma) and rat liver (rl). The biological result indicated that some of these analogs are potent inhibitors of DHFR and some have selectivity for pathogen DHFR. Compound 23 was a two digit nanomolar inhibitor