1. A. P. Arendaruk and A, P. Skoldinov, Zh. Obshch. Khim.,33, 2743 (1963).
2. D. A. Kharkevich, Farmakol. i Toksikol., No. 3, 305 (1965); No. 1, 47 (1966).
3. F. Mercier, J. Mercier, and M. R. Sestier, Compt. Rend. Soc. Biol.,144, 551, 1185 (1950).
4. M. Carrissimi, Farmako., Ed. Sci.,13, 830 (1958).
5. A. M. Galinski, J. F. Gearien, and A. J. Perkins, et al., J. Med. Chem.,6, 320 (1963).