31 (d, 1H, ArCH), 8.17 (d, 1H, ArCH), MS: (m/z: RA%): 455 (M+, 30%); Elemental analysis: Calculated for C18H17N9O4S; C, (47.47%); H, (3.76%); N, (27.68%); found: C, (47.45%); H, (3.70%); N, (27.65%). % Yield: 61%, m.p: 270 °C, IR: (KBr in cm−1): 3267 (N–H str), 2982 (C–H str), 2315 (C–N str), 1634 (C O str), 610 (C–Br str), 1H NMR: (DMSO-d6): (δ, ppm) 2.41

(t, 2H, Paclitaxel CH2), 2.28 (t, 2H, CH2), 2.61 (t, 2H, CH2), 3.65 (t, 2H, CH2), 3.15 (t, 2H, CH2), 7.35 (d, 1H, ArCH), 8.42 (d, 1H, ArCH), 8.15 (d, 1H, ArCH); MS: (m/z: RA%): 489 (M+,70%); Elemental analysis: Calculated for C18H17BrN8O2S; C, (44.18%), H, (3.50%), Br, (16.33%), N, (22.90%); found: C, (44.16%), H, (3.12%), Br, (16.15%), N, (22.51%). %Yield: 63%, m.p: 214 °C, IR: (KBr in cm−1): 3605 (N–H str), 2195 (C–N str), 1620 (C O str), 815 (C–Cl str). 1H NMR: (DMSO d6): (δ, ppm) 2.41 (t, 2H, CH2), 2.28 (t, 2H, CH2), 2.61 (t, Selleck Selumetinib 2H, CH2), 3.65 (t, 2H, CH2), 3.15 (t, 2H, CH2), 7.35 (d, 1H, ArCH),8.42 (d, 1H, ArCH), 8.15 (d, 1H, ArCH); MS: (m/z: RA%): 461 (M+, 70%); 463 (M+2, 25%); Elemental analysis: Calculated for C18H16ClFN8O2S;

C, (46.71%), H, (3.48%), Cl, (7.66%), F, (4.10%); N, (24.21%); found: C, (47.00%), H, (3.42%), F, (4.02%); N, (24.15%). In vitro Anticancer screening: The synthesized compounds (4b), (4c), (4f) were selected by National Cancer Institute (NCI), Bethesda, Maryland, USA, they were screened for preliminary in vitro anticancer

assay.21 Anticancer screening data of tested compounds are depicted in Table 2. In vitro Anti-inflammatory screening22, 23 and 24: The synthesized compounds were screened for anti-inflammatory activity by using inhibition of albumin denaturation technique. The standard drug and test compounds were dissolved in minimum amount of DMF and diluted with phosphate buffer saline (pH 7.4) in such a way that concentration of DMF in all solutions was less than 2.5%. Test solution (1 ml, 100 μg/ml) was mixed with 1 ml of 1% albumin solution in phosphate buffer saline and incubated at 27 ± 1 °C in an incubator for 15 min. Denaturation only was induced by keeping the reaction mixture at 60 ± 1 °C in a water bath for 10 min. After cooling, the turbidity was measured at 660 nm with UV visible spectrophotometer. Percentage of inhibition of denaturation was calculated from control where no drug was added. Each experiment was done in triplicate and average is taken. The Diclofenac sodium was used as standard drug. The percentage of inhibition was calculated using the statistical analysis. Anti-inflammatory screening data of tested compounds are depicted in Table 3. % Inhibition of denaturation = [(Vt/Vc) − 1] × 100where, Vt = mean absorption of test.