Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1973-12-03
1976-08-31
Thomas, Jr., James O.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260298, 424273, C07D33324
Patent
active
039780848
ABSTRACT:
Synthesis of biotin from 4-carbomethoxy-2-(4,5-dihydrothiophen-3(2H)-one)-valeric acid methyl ester, and thiophene intermediates in this synthesis.
REFERENCES:
harris et al., "American Chem. Society," vol. 67, pp. 2096-2106.
Raphael et al., "Advances in Organic Chem.," vol. 3, (1963), p. 160.
Confalone Pasquale Nicholas
Pizzolato Giacomo
Uskokovic Milan Radoje
Gaither Richard A.
Hoffmann-La Roche Inc.
Leon Bernard S.
Siegel A.
Thomas, Jr. James O.
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