Die Herstellung folgender Pterine wird beschrieben: 2-Äthyl-thio-6-oxypteridin, 2-Äthylthio-6-oxy-8,9-diphenylpteridin, 2-Äthyl-thio-6-oxy-8,9-dimethylpteridin, 2-Äthylthio-6-oxy-8,9-phenanthreno-pteridin, 2-Äthylthio-6-oxy-8,9-acenaphtenopteridin, 6-Amino-iso-xanthopterin-carbonsäure, Desimino-isoxanthopterincarbonsäure.
Der Herstellung Flinderender Pterine wird beschrieben:2-Äthylthio-6-oxypteridin,2-Äthylthio-6-oxy-8,9-diphenylpteridin,2-Äthylthio-6-oxy-8,9-dimethylpteridin,2-Äthylthio -6-氧-8,9-菲-蝶啶,2-Äthylthio-6-氧-8,9-ena烯蝶呤,6-氨基-异黄an呤碳素,Desimino-异黄th素碳素。
Synthesis of Novel Classes of Pyrido[2,3‐<i>d</i>]‐pyrimidines, Pyrano[2,3‐<i>d</i>]pyrimidines, and Pteridines
作者:Mohit Lal Deb、Pulak J. Bhuyan
DOI:10.1080/00397910600775622
日期:2006.10
6-Amino-5-formyluracils 1 and 5-formyl-6-hydroxyuracils 4 react with Meldrum's acid 2 in the presence of piperidine as catalyst under thermolytic conditions to afford 6-carboxy-2,4,7-trioxopyrido[2,3-d] pyrimidines 3 and 6-carboxy-2,4,7-trioxopyrano[ 2,3-d] pyrimidines 5 in good yield. Under identical conditions, 6-amino-5- nitrosouracils 6 react with 2 to afford pteridine-6-carboxylic acids 7 in good yields.
Pfleiderer, Chemische Berichte, 1957, vol. 90, p. 2631,2633,2635
作者:Pfleiderer
DOI:——
日期:——
Tschesche; Korte, Chemische Berichte, 1951, vol. 84, p. 801,809