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Synthesis of 4 H ‐pyrazolo‐ and 4 H ‐pyrrolophenothiazin‐4‐one derivatives
Author(s) -
Nan'ya Seiko,
Katsuraya Kaname,
Ueno Yoshio,
Maekawa Eturǒ
Publication year - 1988
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.5570250115
Subject(s) - chemistry , isoindole , indazole , medicinal chemistry
5‐Methyl‐ and 6‐methyl‐2‐phenyl‐2 H ‐indazole‐4,7‐diones were condensed with 2‐aminobenzenethiol or 6‐substituted‐3‐aminopyridine‐2(1 H )thiones 4 to produce a new type of 5‐methyl‐2‐phenyl‐4 H ‐pyrazolophenothiazin‐4‐ones or 8‐substituted‐7‐aza‐5‐methyl‐2‐phenyl‐4 H ‐pyrazolophenothiazin‐4‐one derivatives. From 6‐bromo‐2,5‐dimethyl‐1,3‐diphenyl‐2 H ‐isoindole‐4,7‐dione and 4 8‐substituted‐7‐aza‐2,5‐dimethyl‐1,3‐diphenyl‐4 H ‐pyrrolophenothiazin‐4‐one derivatives were also prepared.