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4-(3,7-Dimethyl-4-oxo-4,5-dihydro-isoxazolo[4,5-d]pyridazin-5-yl)benzene-sulfonamide.

ABSTRACT: The nine-membered fused-ring system of the title pyridazine derivative, C(13)H(12)N(4)O(4)S, is approximately planar (r.m.s. deviation 0.027 Å), and the benzene ring of the phenyl-sulfamide substituent is aligned at 43.5 (1)° to the fused-ring system. The amine group of the sulfonamide substituent forms an N-H⋯O hydrogen bond to the ketonic O atom of two neigboring mol-ecules to generate a chain running along the c axis.

SUBMITTER: Asiri AM

PROVIDER: S-EPMC3200922 | biostudies-literature | 2011 Sep

REPOSITORIES: biostudies-literature

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4-(3,7-Dimethyl-4-oxo-4,5-dihydro-isoxazolo[4,5-d]pyridazin-5-yl)benzene-sulfonamide.

Asiri Abdullah M AM Faidallah Hassan M HM Al-Youbi Abdulrahman O AO Obaid Abdullah Y AY Ng Seik Weng SW

Acta crystallographica. Section E, Structure reports online 20110827 Pt 9

The nine-membered fused-ring system of the title pyridazine derivative, C(13)H(12)N(4)O(4)S, is approximately planar (r.m.s. deviation 0.027 Å), and the benzene ring of the phenyl-sulfamide substituent is aligned at 43.5 (1)° to the fused-ring system. The amine group of the sulfonamide substituent forms an N-H⋯O hydrogen bond to the ketonic O atom of two neigboring mol-ecules to generate a chain running along the c axis. ...[more]

PMID: 22059027

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