... (1) Presented in part before the Division of Medicinal Chemistry, 136th Meeting of the American Chemical Society, Atlantic City, I%. J., September 1959. (2) FC Novello and JM Sprague, J . -4m. Chem. ... SOC., 370 (1947). 49,2520 (1927). J. Org. Chem., 6, 289 (1941). 421 (1949). ...