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8-Hy-droxy-6-meth-oxy-7-(3-methyl-but-2-en-yloxy)coumarin (capensine).

ABSTRACT: The title coumarin derivative, C₁₅H₁₆O₅, was isolated from the roots of Sophora japonica. The coumarin (2H-chromen-2-one) fragment is almost planar, with an r.m.s. deviation of 0.0356 Å. The carbon atom of the meth-oxy substituent is coplanar with the benzo-pyran oxa-heterocycle. The 3-methyl-but-2-en-yloxy group is disordered over two sets of sites with occupation factors of 0.920 (3) and 0.080 (3). In the crystal, mol-ecules are linked by O-H⋯O and C-H⋯O hydrogen bonds into chains propagating along the [101] direction.

SUBMITTER: Mamadrakhimov A

PROVIDER: S-EPMC9462336 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature

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8-Hy-droxy-6-meth-oxy-7-(3-methyl-but-2-en-yloxy)coumarin (capensine).

Mamadrakhimov Azimjon A Mutalliyev Luqmonjon L Abdullaev Sirojiddin S Khodjaniyazov Khamid K Izotova Lidiya L Aisa Haji Akber HA

IUCrData 20210511 Pt 5

The title coumarin derivative, C15H16O5, was isolated from the roots of Sophora japonica. The coumarin (2H-chromen-2-one) fragment is almost planar, with an r.m.s. deviation of 0.0356 Å. The carbon atom of the meth-oxy substituent is coplanar with the benzo-pyran oxa-heterocycle. The 3-methyl-but-2-en-yloxy group is disordered over two sets of sites with occupation factors of 0.920 (3) and 0.080 (3). In the crystal, mol-ecules are linked by O-H⋯O an ...[more]

PMID: 36338269

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