Method for preparing (+)-biotine
OwnerMichael Schwarz, Ulrich Heywang +1inventors
InventorsMichael Schwarz, Ulrich Heywang, Thomas Koppe
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Abstract
The invention relates to a novel method for preparing biotine while using 5-hydroxy-2(5H)-furanone as a starting substance. The invention also relates to a method in which 1-chlorosulfonyl-1,2,2a,3,5,5a-hexa-hydro-3-((1R)-menthyloxy-)-furo[3,4-b]azet-2-one is formed as an intermediate product.
Claims8
Process for the preparation of (+)-biotin, characterised in that 5-hydroxy-2(5H)-furanone is employed as starting compound.
Process for the preparation of (+)-biotin, characterised in that 1-chlorosulfonyl-1,2,2a,3,5,5a-hexahydro-3-((1R)-menthyloxy)-furo[3,4-d]azet-2-one is formed as intermediate.
Use of 5-hydroxy-2(5H)-furanone as starting compound for the preparation of (+)-biotin.
Dependencies are inferred from the claim text.