在温和的反应条件下,开发了使用可见光照射的无金属催化剂、有机染料催化的吡啶并[1,2- a ]嘧啶-4-酮的C3-H芳基化。这种操作简单且直接的C-H功能化方法有效地产生了具有生物学意义的C3芳基化吡啶并[1,2- a ]嘧啶-4-一和噻唑并[3,2- a ]嘧啶-5-一衍生物,包括医学上重要的内皮细胞功能障碍抑制剂和抗炎剂的产率良好至优异,且具有良好的官能团耐受性。目前的光诱导直接 C3-H 芳基化方法适合放大合成。
inexpensive, nontoxic manganese catalyst enabled unprecedented redox‐neutral carbonylative annulations under ambient pressure. The manganese catalyst outperformed all other typically used base and precious‐metal catalysts. The outstanding versatility of the manganese catalysis manifold was reflected by ample substrate scope, setting the stage for effective late‐stage manipulations under racemization‐free
A novel carbonylation of C(sp3)–H bonds in pyridylamines with one atmosphere of CO2 is reported to synthesize important pyrimidinones in good yields. This transition-metal-free and redox-neutral process features the use of a nontoxic carbonyl source, broad substrate scope, good functional group tolerance, facile scalability and easy product derivatization.
Katagiri, Nobuya; Kato, Tetsuzo; Niwa, Ryuji, Journal of Heterocyclic Chemistry, 1984, vol. 21, p. 407 - 412
作者:Katagiri, Nobuya、Kato, Tetsuzo、Niwa, Ryuji
DOI:——
日期:——
GILCHRIST T. L.; HARRIS C. J.; MOODY C. J.; REES C. W., J. CHEM. SOC. PERKIN TRANS. PART. 1 <JCPK-BH>, 1975, NO 19, 1969-72
作者:GILCHRIST T. L.、 HARRIS C. J.、 MOODY C. J.、 REES C. W.
DOI:——
日期:——
[EN] A THERAPEUTIC AGENT FOR TREATMENT OF BLOOD VESSELS<br/>[FR] AGENT THÉRAPEUTIQUE UTILISABLE EN VUE DU TRAITEMENT DES VAISSEAUX SANGUINS
申请人:UNIV PISA
公开号:WO2013144860A1
公开(公告)日:2013-10-03
A therapeutic agent for the treatment of blood vessels, preferably applied to coronary stents, characterised in that it comprises compounds with a 2,3-diphenyl-4H- pyrido[1,2-a]pyrimidine-4-one nucleus.