Preparation of biotin

Details Preparation of biotin Preparation of biotin

1978-09-28

1980-02-19

Rotman, Alan L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D49504

Patent

active

041895860

ABSTRACT:
A novel procedure for the preparation of biotin employing cysteine as the starting material is disclosed. This synthesis involves the formation of the thiophane ring by a 1,3-dipolar addition. By virtue of this process pure d-biotin can be obtained, thus obviating the need for chemical resolution. Novel intermediates are also disclosed.

REFERENCES:
patent: 2466232 (1949-04-01), Harris et al.
patent: 2489237 (1949-11-01), Goldberg et al.
patent: 3740416 (1973-06-01), Gerecke et al.

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