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Methyl 2,2-dimeth-oxy-8-oxo-1-oxaspiro-[4.5]deca-6,9-diene-3-carboxyl-ate.

ABSTRACT: In the title mol-ecule, C(13)H(16)O(6), the cyclo-hexa-1,4-diene ring adopts a flat boat conformation (r.m.s. deviation from planarity = 0.060 Å) and the five-membered tetra-hydro-furan ring adopts an envelope conformation with the carboxyl group-substituted C atom as the flap. The dihedral angle at the spiro junction is 89.1 (1)°. In the crystal, mol-ecules are linked through weak C-H⋯O and van der Waals inter-actions.

SUBMITTER: Lou Y

PROVIDER: S-EPMC3344095 | biostudies-literature |

REPOSITORIES: biostudies-literature

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4-Tosyl-1-oxa-4-aza-spiro-[4.5]deca-6,9-dien-8-one.

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Synthesis and Antitumor Activity of a Series of Novel 1-Oxa-4-azaspiro[4,5]deca-6,9-diene-3,8-dione Derivatives.

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