55. Stereoselective tandem synthesis of thiazolo fused naphthyridines and thienopyridines from o-alkynylaldehydes via Au(III)-catalyzed regioselective 6-endo-dig ring closure

56.

57. Au (III)-catalyzedregio- and stereoselective tandem synthesis of oxazolo fused naphthyridines and isoquinolines from o-alkynylaldehyde

58. Base-Mediated Chemo- and Stereoselective Addition of 5-Aminoindole/Tryptamine and Histamines onto Alkynes

59. Stereoselective tandem synthesis of oxazolo-fused pyrroloquinolines from o-alkynylaldehydes via Ag(I)-catalyzed regioselective 5-exo-dig ring closure

60. An Expedient Approach to Pyrrolo[3,2-c]quinolines via Regioselective Formation of Pyrrole Nucleus over Indoles

61. Synthesis of fused heterocycles via preferential hydroamination over N-arylation and concomitant intramolecular C-C bond formation
