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New synthetic approaches to bridgehead nitrogen heterocycles. Derived from 3‐amino‐2,3‐dihydro‐5,6‐dimethyl‐2‐thioxothieno[2,3‐ d ]pyrimidin‐4(1 H )‐one and its salts
Author(s) -
Santagati Andrea,
Modica Maria,
Santagati Maria
Publication year - 2000
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570370523
Subject(s) - chemistry , pyrimidine , nitrogen , potassium , stereochemistry , medicinal chemistry , combinatorial chemistry , organic chemistry
Bridgehead nitrogen heterocycles 3a , b and 6a , b containing the thieno‐pyrimidine system have been prepared from the versatile intermediates 3‐amino‐2,3‐dihydro‐5,6‐dimethyl‐2‐thioxo‐thieno[2,3‐ d ]pyrimidin‐4‐(1 H )‐one 1 and its hydrazinium or potassium salts 4 ; their structural elucidation is also reported.