(2R)-2-O-(alpha-D-glucopyranosyl)-glycerate + H2O = (R)-glycerate + D-glucose
(2r)-2-o-(alpha-d-glucopyranosyl)-glycerate + h2o = (r)-glycerate + d-glucose
(2R)-2-O-(alpha-D-glucopyranosyl)-glycerate + H2O = (R)-glycerate + D-glucose
(2r)-2-o-(alpha-d-glucopyranosyl)-glycerate + h2o = (r)-glycerate + d-glucose