![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
4-Methyl-2-phenyl-5-(1-pyrryl)-6-substituted-thieno[2,3-d]pyrimidines ( 3a-c , 4a-c , 5a , b , and 6 ) have been synthesized. Some of the substituents in position 6 were used to build up different sulfur-, nitrogen- and/or oxygen-containing heterocyclic rings at that position. The 4-methyl-2-phenyl-5-(1-pyrryl)-thieno[2,3-d]pyrimidine-6-carboazide ( 20 ) was also used as a key intermediate in the synthesis of the target pyrrolo[1",2":1',6']pyrazino[2',3':4,5]thieno[2,3-d]pyrimidines.
Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?
To request a reprint or corporate permissions for this article, please click on the relevant link below:
Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?
Obtain permissions instantly via Rightslink by clicking on the button below:
If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.
