High-Affinity Inhibitors of Dihydrofolate Reductase: Antimicrobial and Anticancer Activities of 7,8-Dialkyl-1,3-diaminopyrrolo[3,2-<i>f</i>]quinazolines with Small Molecular Size
作者:Lee F. Kuyper、David P. Baccanari、Michael L. Jones、Robert N. Hunter、Robert L. Tansik、Suzanne S. Joyner、Christine M. Boytos、Sharon K. Rudolph、Vince Knick、H. Robert Wilson、J. Marc Caddell、Henry S. Friedman、John C. W. Comley、Jeremy N. Stables
DOI:10.1021/jm9505122
日期:1996.1.1
interactions with a hydrophobic region of the protein. The compounds were potent inhibitors of fungal and human DHFR, with K(i) values as low as 7.1 and 0.1 pM, respectively, and were highly active against C. albicans and an array of tumor cell lines. In contrast to known lipophilicinhibitors of DHFR such as trimetrexate and piritrexim, members of this series of pyrroloquinazolines were not susceptible to
Substituted alkylamine derivatives and methods of use
申请人:Amgen Inc.
公开号:US20030225106A1
公开(公告)日:2003-12-04
Selected amines are effective for prophylaxis and treatment of diseases, such as angiogenesis mediated diseases. The invention encompasses novel compounds, analogs, prodrugs and pharmaceutically acceptable salts thereof, pharmaceutical compositions and methods for prophylaxis and treatment of diseases and other maladies or conditions involving, cancer and the like. The subject invention also relates to processes for making such compounds as well as to intermediates useful in such processes.
with isoselenocyanates directly resulted in the 6-exo-dig mode ring-closure reaction of the adducts to give the (Z)-2-imino-4-methylene-3-selenaquinolines in moderate to good yields. Based on this convenient, solvent-free, catalyst-free method, several 3-selenaquinoline derivatives (3,1-benzoselenazines) were easily obtained in one pot. Successful application of the microwave-assisted synthesis of these
A competitive and highly selective 7-, 6- and 5-annulation with 1,3-migration through C–H and N–H – alkyne coupling
作者:Sk Ajarul、Anirban Kayet、Tanmay K. Pati、Dilip K. Maiti
DOI:10.1039/c9cc07360d
日期:——
We demonstrated a highly competitive and selective C-C and N-C cross-coupled 7-, 6- and 5-annulation utilizing 2-ethynylanilides to afford functionalized 1H-benzo[b]azepin-2(5H)-ones, 2-quinolinones, and 3-acylindoles in high yield. ZnCl2 was found to be the smart catalyst for 7- and 5-annulation with 1,3-migration through C-H and N-H functionalization, respectively, whereas molecular iodine performed
A one-pot synthesis of 2,2′-disubstituted diindolylmethanes (DIMs) via a sequential Sonogashira coupling and cycloisomerization/C3-functionalization of 2-iodoanilines
作者:Anirban Kayet、Vinod K. Singh
DOI:10.1039/c7ob01701d
日期:——
A Pd(II)-Ag(I) catalyzed highly efficient synthesis of diindolylmethane has been developed. This transformation consists of a one pot sequential Sonogashira coupling (and desilylation) followed by cycloisomerization/C3-functionalization of 2‑iodoanilines. Six new bonds (four C-C and two C-N) are formed in one pot fashion. A variety of diindolylmethanes were obtained in excellent yields (up to 94%)