... (It is reasonable to (1) (a) Hodgkinson, A. “Oxalic Acid in Biology and Medicine”; Academic Press: New York, 1977; p 245. (b) Williams, H. E. N. Engl. J. Med. ... Scheme I. Major Pathways of Oxalate Biosynthesis Journal of Medicinal Chemistry, 1983, Vol. 26, No. 5 701 ...