A new, one-pot, multicomponent synthesis of 5-aza-9-deaza-adenines under microwave irradiation
作者:Felicia Phei Lin Lim、Giuseppe Luna、Anton V. Dolzhenko
DOI:10.1016/j.tetlet.2014.07.105
日期:2014.9
A new, practical, three-component method for the synthesis of 5-aza-9-deaza-adenines is developed. Aminopyrazoles react in a one-pot fashion with triethyl orthoformate and cyanamide undermicrowave irradiation affording 5-aza-9-deaza-adenines in good yields and high purity. The main advantages of this method are the operational simplicity, accessibility, and high efficiency.
Bi-functional complexes and methods for making and using such complexes
申请人:Gouliaev Alex Haahr
公开号:US11225655B2
公开(公告)日:2022-01-18
The present invention is directed to a method for the synthesis of a bi-functional complex comprising a molecule part and an identifier oligonucleotide part identifying the molecule part. A part of the synthesis method according to the present invention is preferably conducted in one or more organic solvents when a nascent bi-functional complex comprising an optionally protected tag or oligonucleotide identifier is linked to a solid support, and another part of the synthesis method is preferably conducted under conditions suitable for enzymatic addition of an oligonucleotide tag to a nascent bi-functional complex in solution.
2,4-Diaminopyrimidines as Antimalarials. III. 5-Aryl Derivatives
作者:Peter B. Russell、George H. Hitchings
DOI:10.1021/ja01152a060
日期:1951.8
Synthesis and molecular modeling of 1H-pyrrolopyrimidine-2,4-dione derivatives as ligands for the α1-adrenoceptors
作者:Valeria Pittalà、Maria A. Siracusa、Maria N. Modica、Loredana Salerno、Alessandro Pedretti、Giulio Vistoli、Alfredo Cagnotto、Tiziana Mennini、Giuseppe Romeo
DOI:10.1016/j.bmc.2011.06.043
日期:2011.9
Three different series of 1H-pyrrolopyrimidine-2,4-dione derivatives were designed and synthesized as ligands for the alpha(1)-adrenergic receptors (alpha(1)-ARs). A microwave-assisted protocol was developed in order to improve purity and yields of some final products. The majority of the synthesized compounds, tested in binding assays, displayed alpha(1)-AR affinities in the nanomolar range. Highest affinity values were found in derivatives 10b and 10c (K-i = 1.4 nM for both) whereas compound 10e was endowed with the best profile in term of alpha(1)-AR affinity (K-i = 2.71 nM) coupled with high selectivity towards 5-HT1A receptors (K-i > 10,000). Molecular docking studies were performed on human alpha(1)-ARs and human 5-HT1A receptors in order to rationalize the observed experimental affinity and selectivity; these computational studies helped to clarify molecular requirements for the design of high-selective alpha(1)-adrenergic ligands. (C) 2011 Elsevier Ltd. All rights reserved.
Bellec, Christian; Maitte, Pierre; Deswarte, S., Bulletin de la Societe Chimique de France, 1981, vol. 2, # 11-12, p. 441 - 448