Heterocycles of biological importance: Part 8. Formation of pyrimido[1,2-a]benz-imidazoles and oxazolo[3,2-a]benzimidazoles by conjugate addition of 2-aminobenzimidazoles to 4-hydr...

by Helene Wahe, Peter F. Asobo, Rafael A. Cherkasov, Zacharias T. Fomum, Dietrich Doepp
Published 2004-06-01

Heterocycles of biological importance: Part 7. Synthesis of biologically active pyrimido[2,1-b]benzothiazoles from acetylenic acids and 2-aminobenzothiazoles

by Helene Wahe, Joseph T. Mbafor, Augustin E. Nkengfack, Zacharias T. Fomum, Rafael A. Cherkasov, Olov Sterner, Dietrich Doepp
Published 2004-01-01

Heterocycles of biological importance: Part 6. The formation of novel biologically active pyrimido[1,2-a]benzimidazoles from electron deficient alkynes and 2-aminobenzimidazoles

by Helene Wahe, Peter F. Asobo, Rafael A. Cherkasov, Augustin E. Nkengfack, Gabriel N. Folefoc, Zacharias T. Fomum, Dietrich Doepp
Published 2003-12-01