O(2),1,9-trimethyluric acid and 1,3,7,9-tetramethyluric acid in leaves of different Coffea species
作者:Hans Wanner、Marcela Pešáková、Thomas W. Baumann、Ramamurty Charubala、Armin Guggisberg、Manfred Hesse、Hans Schmid
DOI:10.1016/0031-9422(75)83027-5
日期:1975.3
Abstract O (2),1,9-Trimethyluric acid and 1,3,7,9-tetramethyluric acid were isolated from young leaves of Coffea liberica , C. arnoldiana , C. dewevrei var. excelsa and var. aruwimiensis . The first purine has not been found before in nature; its identification required the synthesis of nearly all of its possible isomers.
摘要 O (2),1,9-三甲基尿酸和1,3,7,9-四甲基尿酸是从Coffea liberica, C. arnoldiana, C. dewevrei var. 的幼叶中分离得到的。excelsa 和 var。阿鲁维米亚种。自然界中以前从未发现过第一种嘌呤;它的鉴定需要合成几乎所有可能的异构体。