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Methyl 5-(4-hy-droxy-3-meth-oxy-phen-yl)-2-(4-meth-oxy-benzyl-idene)-7-methyl-3-oxo-2,3-dihydro-5H-thia-zolo[3,2-a]pyrimidine-6-carboxyl-ate.


ABSTRACT: In the title compound, C(24)H(22)N(2)O(6)S, a pyrimidine ring substituted with 4-hy-droxy-3-meth-oxy-phenyl is fused with a thia-zole ring. The 4-hy-droxy-3-meth-oxy-phenyl group is positioned axially to the pyrimidine ring, making a dihedral angle 85.36?(7)°. The pyrimidine ring adopts a twist boat conformation. In the crystal, O-H?N inter-actions result in a chain running along the b axis. The carbonyl O atom bonded to the thia-zole ring is involved in two C-H?O hydrogen-bond inter-actions forming centrosymmetric dimers; the ten- and six-membered rings resulting from these inter-actions have R(2) (2)(10) and R(1) (2)(6) motifs, respectively.

SUBMITTER: Nagarajaiah H 

PROVIDER: S-EPMC3239076 | biostudies-literature | 2011 Dec

REPOSITORIES: biostudies-literature

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Methyl 5-(4-hy-droxy-3-meth-oxy-phen-yl)-2-(4-meth-oxy-benzyl-idene)-7-methyl-3-oxo-2,3-dihydro-5H-thia-zolo[3,2-a]pyrimidine-6-carboxyl-ate.

Nagarajaiah H H   Begum Noor Shahina NS  

Acta crystallographica. Section E, Structure reports online 20111125 Pt 12


In the title compound, C(24)H(22)N(2)O(6)S, a pyrimidine ring substituted with 4-hy-droxy-3-meth-oxy-phenyl is fused with a thia-zole ring. The 4-hy-droxy-3-meth-oxy-phenyl group is positioned axially to the pyrimidine ring, making a dihedral angle 85.36 (7)°. The pyrimidine ring adopts a twist boat conformation. In the crystal, O-H⋯N inter-actions result in a chain running along the b axis. The carbonyl O atom bonded to the thia-zole ring is involved in two C-H⋯O hydrogen-bond inter-actions for  ...[more]

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