FIELD: chemistry.
SUBSTANCE: invention relates to method of isolation of 1-O-2-(3,4-dimethoxybenzyl)-3-carboxy-4-(3-methoxy-4-oxyphenyl)-butyl-β-D-galactopiranose of general formula (1) 
, which lies in exhaustive constant extraction of air-dry seeds of Scotch cottonthistle Onopordum acanthium L. with chloroform during 2 days in Soxlet apparatus, isolation from extract by means of triple procession with n-hexane with further exposure at 10°C during 7 days and further filtration.
EFFECT: new efficient method of isolation of 1-O-2-(3,4-dimethoxybenzyl)-3-carboxy-4-(3-methoxy-4-oxyphenyl)-butyl-β-D-galactopiranose.
1 cl, 1 ex
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