Meditsinskaya Promyshlennost SSSR, , vol. 13, # 7 p. .46 Chem.Abstr., , p. 258 Journal of Pharmacy and Pharmacology, , vol. 3, p. 663,666 Journal of Applied Chemistry, , vol. 2, p. 565,573 Roczniki Chemii, , vol. 30, p. 623 Acta Poloniae Pharmaceutica, , vol. 12, p. 129,132