2,3,3A,6,7,7A-Hexahydro-thieno[3,2-b]pyridin-(4H)5-ones

Details 2,3,3A,6,7,7A-Hexahydro-thieno[3,2-b]pyridin-(4H)5-ones 2,3,3A,6,7,7A-Hexahydro-thieno[3,2-b]pyridin-(4H)5-ones

1976-03-18

1977-02-22

Todd, G. Thomas

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D49504

Patent

active

040091724

ABSTRACT:
A novel procedure for the preparation of biotin, using cysteine as the starting material is disclosed. This process results in the obtention of pure d-biotin thus obviating the need for a chemical resolution. Novel intermediates are also disclosed.

REFERENCES:
patent: 3632592 (1972-01-01), Nakanishi et al.
Ali et al., Carbohyd. Res. 5 (4), 441-448 (1967).
Boyer, J. Am. Chem. Soc. 73, 5865-5866 (1951).
Boyer et al., J. Org. Chem. 23, 127-129 (1958).

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