A Triacetyl Derivation of a Pyrano[3,2-g]pteridine
作者:J. N. Low、E. Cadoret、G. Ferguson、M. D. López、M. L. Quijano、A. Sánchez、M. Nogueras
DOI:10.1107/s0108270195005956
日期:1995.10.15
The structure and stereochemistry of the title compound, (3R,4R,4aS,10aR)-5-acetyl-3,4,4a,5,6,7,10,10a-octahydro-8-methoxy-7-methyl-6-oxo-2H-pyrano[3,2-g]pteridin-3,4-diyl diacetate, C17H22N4O8, is established, with cis H atoms at the A/B ring fusion. Molecules are linked by N-H ... O hydrogen bonds [N ... O 2.816 (5) Angstrom] to form infinite spirals about 2(1) screw axes.
Synthesis and biological study of 6-polyhydroxyalkylpteridines
作者:M. Dolores López、M. Luisa Quijano、Adolfo Sánchez、Manuel Nogueras、John N. Low
DOI:10.1002/jhet.5570380331
日期:2001.5
6-Polyhydroxyalkylpteridines are synthesised by oxidation of the corresponding pyrano[3,2-g]pteridines, the latter ones having been obtained by condensation between 5,6-diaminopyrimidines 1a,b and phenylhydra-zones 2a-e. The relative configuration at the chiral centers of the pyrano[3,2-g]pteridines has been determined by nmr study and X-ray analysis. The anti-AIDS activity of several of these compounds
通过氧化相应的吡喃并[3,2- g ]哌啶来合成6-多羟基烷基哌啶,后者是通过5,6-二氨基嘧啶1a,b和苯并a区2a-e之间的缩合而获得的。吡喃并[3,2- g ]蝶啶的手性中心的相对构型已通过nmr研究和X射线分析确定。已经测试了其中几种化合物的抗艾滋病活性。