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2. Bergström, S., Arkiv. Kemi21, 14 (1946).
3. Bergström, S., Ibid.21, 15 (1946).
4. Cochrane, C. C., and H. J. Harwood, J. Org. Chem.26, 1278–1282 (1961).
5. Tappel, A. L., in “The Enzymes,” 2nd ed., Vol. 8, P. D. Boyer, H. Landy, and K. Myrböch, eds., Academic Press, New York, 1963, p. 275–283.