... Advances in Heterocyclic Chemistry. Volume 9, 1968, Pages 165–209. Edited By AR Katritzky and AJ Boulton. Cover image Cover image. ... References. 1; LL Bambas; “Five-Membered Heterocyclic Compounds,”, Wiley (Interscience), New York (1952), p. 81. ... M. Ohta; J. Pharm. Soc ...