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PrefaceOONHNHPOCl 3MWINVi-xviiClClCH 2 CNMWIOOCH 3 /C 2 H 5NMWINVxviii-xxivPOCl 3 MWIClClINH 2ClNNNVIi-xiiiClCH 3 CNMWINVIxiv-xviiClONHNVxxv-xxxPOCl 3 ,MWIClNwhere,NVIxviii-xxiiR 1MeON=, , ,R 2NSMeOOR 1 , R 2 = -(CH 2 ) 4 -; R 1 , R 2 = CH 3 ; R 1 = 4-CH 3 -C 6 H 4 , R 2 = H;R 1 = CH 3 , R 2 = COOC 2 H 5 ; R 1 = C 6 H 5 , R 2 = H.,NS,SOCH 3Scheme 1Part III of this work deals with the “Synthesis, Characterization and Anticancer Activityof some Aza-analogue of DP-7”.3,5-Dibenzoyl-1,4-dihydropyridine (DP-7) is a potent multidrug reverting agent thatinhibits efflux of drug from cell wall by inhibiting activity of ATP binding cassettes(ABC). 12,13 A dihydropyrimidine (DHPM) derivative, (aza analogue) namely, monestrolinhibits the Eg5 protein, which is responsible for the separation of daughter chromosomesduring cell division and controls the growth of tumor cells. 14,15xvi