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In both (2R,3S)-3-(2-methoxyethyl)-3-methyl-2-(phenylsulfonyl)cyclopentanone, C15H20O4S, (1), (1S,2R,3S,5R)-2,5-dimethyl-1-(phenylsulfonyl)bicyclo[3.2.0]heptan-2,3-diol, C15H20O4S, (2), the five-membered ring is in an envelope conformation. In compound (1), the phenylsulfonyl and the methyl groups are cis to each other and the cyclization to the bicycloheptane, (2), occurs with retention of this geometry. The hydroxyl groups in (2) are trans to each other.

Supporting information

cif

Crystallographic Information File (CIF)
Contains datablocks default, 1, 2

fcf

Structure factor file (CIF format)
Contains datablock 1

fcf

Structure factor file (CIF format)
Contains datablock 2

CCDC references: 126964; 126965

-1

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