FIELD: medicine.
SUBSTANCE: invention refers to 2,3; 4,5-di-O-isopropylidene-L-sorbopyranose synthesised from α,β-L-sorbopyranose and acetone with strong sulphuric acid added as a catalyst, according to the following process sequence: agitation of mixed reagents when cooled, neutralisation of reaction mass, mix work up, target and intermediate work up, purification of an end product. 
.
EFFECT: higher yield, improved purification.
1 cl, 4 ex
| Title | Year | Author | Number |
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