title: [Synthesis of new pyrido-(3',2':4,5)-thieno-(3,2-d)-1,2,3-triazine derivatives as antianaphylactics].
abstract: Some new pyrido[3',2':4,5]thieno[3,2-d]1,2,3-triazine-4(3H)-ones (C) were synthesized from 2-thioxo-1,2-dihydro-3-carbonitriles (A) via the 3-amino-thieno[2,3-b]pyridine-2-carboxamides (B). Substances of structure A were converted to 3-amino-thieno[2,3-b]pyridine-2-carbonitriles (G) which yielded the desired 4-amino substituted compounds I via the tricyclic 4-chloro-pyrido[3',2':4:5]thieno[3,2-d]1,2,3-triazines (H) by the reaction with N-nucleophiles. Some of the investigated compounds showed a respectable antianaphylactic activity.
authors.affiliation: Fachbereich Biowissenschaften der Universität Leipzig.
authors.forename: G
authors.initials: G
authors.lastname: Wagner
authors.forename: S
authors.initials: S
authors.lastname: Leistner
authors.forename: H
authors.initials: H
authors.lastname: Vieweg
authors.forename: U
authors.initials: U
authors.lastname: Krasselt
authors.forename: J
authors.initials: J
authors.lastname: Prantz
mesh_terms: D000818:Animals; D010323:Passive Cutaneous Anaphylaxis / Q000187:drug effects*; D011725:Pyridines / Q000138:chemical synthesis* / Q000494:pharmacology; D051381:Rats; D013056:Spectrophotometry, Ultraviolet; D013329:Structure-Activity Relationship; D014227:Triazines / Q000138:chemical synthesis* / Q000494:pharmacology
chemical_list: D011725:Pyridines; D014227:Triazines