Al-Hajjar, Farouk H.; Sabri, Salim S., Journal of Heterocyclic Chemistry, 1982, vol. 19, p. 1087 - 1092
作者:Al-Hajjar, Farouk H.、Sabri, Salim S.
DOI:——
日期:——
2,4,6-Trisubstituted Pyrimidines as a New Class of Selective Adenosine A<sub>1</sub> Receptor Antagonists
作者:Lisa C. W. Chang、Ronald F. Spanjersberg、Jacobien K. von Frijtag Drabbe Künzel、Thea Mulder-Krieger、Gijs van den Hout、Margot W. Beukers、Johannes Brussee、Adriaan P. IJzerman
DOI:10.1021/jm049448r
日期:2004.12.1
Adenosine receptor antagonists usually possess a bi- or tricyclic heteroaromatic structure at their core with varying substitution patterns to achieve selectivity and/or greater affinity. Taking into account molecular modeling results from a series of potent adenosine A(1) receptor antagonists, a pharmacophore was derived from which we show that a monocyclic core can be equally effective. To achieve a compound that may act at the GNS we propose imposing a restriction related to its polar surface area (PSA). In consequence, we have synthesized two novel series of pyrimidines, possessing good potency at the adenosine A, receptor and desirable PSA values. In particular, compound 30 (LUF 5735) displays excellent A, affinity (K-i = 4 nM) and selectivity (less than or equal to50% displacement of 1 muM concentrations of the radioligand at the other three adenosine receptors) and has a PSA value of 53 Angstrom2.
MAMAEV V. P.; VAJS A. L., XIMIYA GETEROTSIKL. SOEDIN. <KGSS-AQ>, 1975, HO 11, 1555-1559
作者:MAMAEV V. P.、 VAJS A. L.
DOI:——
日期:——
BADDAR F. G.; AL-HAJJAR F. H.; EL-RAYYES N. R., J. HETEROCYCL. CHEM. <JHTC-AD>, 1976, 13, NO 2, 257-268
作者:BADDAR F. G.、 AL-HAJJAR F. H.、 EL-RAYYES N. R.
DOI:——
日期:——
Trisulfur-Radical-Anion-Triggered C(sp<sup>2</sup>)–H Amination of Electron-Deficient Alkenes
作者:Khang X. Nguyen、Phuc H. Pham、Thao T. Nguyen、Chou-Hsun Yang、Hoai T. B. Pham、Tung T. Nguyen、Haobin Wang、Nam T. S. Phan
DOI:10.1021/acs.orglett.0c03846
日期:2020.12.18
A trisulfur-radical-anion (S3̇–)-triggered C(sp2)–Hamination of α,β-unsaturated carbonyl derivatives with simple amines has been demonstrated. This protocol provides convenient access to a variety of synthetically valuable N-unprotected and secondary β-enaminones with absolute Z selectivity and tertiary β-enaminones with E selectivity. Mechanistic probe and electronic structure theory calculations