3-Amino-2,3,3a,6,7,7a-hexahydro-thieno[3,2-b]pyridin-(4H)5-one

Details 3-Amino-2,3,3a,6,7,7a-hexahydro-thieno[3,2-b]pyridin-(4H)5-one 3-Amino-2,3,3a,6,7,7a-hexahydro-thieno[3,2-b]pyridin-(4H)5-one

1975-05-02

1976-05-18

Todd, G. Thomas

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2603067C, 2603097, 2603322A, C07D33300

Patent

active

039577945

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).
Coffey, "Rodds' Chemistry of Carbon Compounds, Vol. I, Part B, Second Edition," Elsevier, New York (1965), p. 162.

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