“…Amidst them, heterocycles with polycyclic ring system possess distinct rigid geometry displaying high functional specialization by orienting its substituents in three dimensional spaces, there by attracting great interest [2]. Indole is a bicyclic heterocyclic scaffold that find applications in medical therapy due to a variety of valuable biologic activities such as antiviral [3,4], antiinflammatory [5,6], anti-hyperlipidemic, antihypoglycemic, anti-hypertensive, anti-asthmatic, anti HIV [7], antidepressant [8] and notably anticancer [9][10][11][12][13][14][15] activity. Few marketed anticancer indole derivatives are vincristine, vinblastine, vinorelbine, vindesine, mitraphylline, cediranib and apaziquone [2].…”