References
- Goodman and Gilman's The Pharmacological Basis of Therapeutics(9th Edition) Hardman, J. G.;Limbird, L. E
- Organosynthetic Chemistry v.45 Nitta, I.;Ueno, H
- J. Am. Chem. Soc. v.76 Poos, G. I.;Lukes, R. M.;Arth, G. E.;Sarett, L. H
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- British patent 995344 Mercer, C. K.;Morris, W.;Wilkin, g. D
- US patent 3683724 Hogg, J. A.;Nathau, H. A
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- US patent 2769823 Schneider, W. P.;Hanze, A. R