Polycyclic <i>N</i>‐Heterocyclic Compounds. Part 86: Synthesis and Evaluation of Antiplatelet Aggregation Activity of 2,4‐Disubstituted 9‐Chloro‐5,6‐dihydropyrimido[5,4‐<i>d</i>]benzazepine and Related Compounds

Kenji Sasaki, Shigeki Takarada, Kensuke Okuda, Takashi Hirota

doi:10.1002/jhet.2190

<jats:p>Libraries of tricyclic 2‐substituted 4‐alkylamino‐9‐chloro‐5,6‐dihydropyrimido[5,4‐<jats:italic>d</jats:italic>]benzazepines and tetracyclic 12‐substituted 8‐chloro‐1,2,5,6‐tetrahydro‐4<jats:italic>H</jats:italic>‐imidazo[1′,2′:1,6]pyrimido[5,4‐<jats:italic>d</jats:italic>]benzazepines were synthesized as part of our research to develop new effective antiplatelet drugs. Several alkyl and aryl groups were used as substituents at the 2‐position. Evaluation of the effects of the newly synthesized compounds on collagen‐induced platelet aggregation revealed several promising antiplatelet candidates with potencies superior to aspirin.</jats:p>

Polycyclic <i>N</i>‐Heterocyclic Compounds. Part 86: Synthesis and Evaluation of Antiplatelet Aggregation Activity of 2,4‐Disubstituted 9‐Chloro‐5,6‐dihydropyrimido[5,4‐<i>d</i>]benzazepine and Related Compounds

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