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Journal of Chemistry
/
2013
/
Article
/
Tab 1
/
Research Article
Quantitative Structure Activity Relationship Studies of Topoisomerase I Inhibitors as Potent Antibreast Cancer Agents
Table 1
Structures of the indenoisoquinoline derivatives as topoisomerase I inhibitors.
Compound
R
1
R
2
R
3
R
4
Activity, GI
50
(
M)
1_3
–H
–NO
2
–OCH
3
3.24
1_4
–H
–NO
2
–OCH
3
0.251
1_5
–H
–NO
2
–OCH
3
3.31
1_35
–H
–NO
2
30.9
1_38
–H
–NO
2
–SMe
30.9
1_40
–H
–NO
2
–H
31.6
1_41
–H
–NO
2
–F
37.2
1_42
–H
–NO
2
–Cl
14.8
1_43
–H
–NO
2
–Br
0.282
1_49
–H
–NO
2
83.2
1_50
–H
–NO
2
39.8
1_53
–H
–NO
2
6.03
1_56
–H
–NO
2
–F
2.88
1_59
–H
–NO
2
–I
34.7
1_62
–H
–NO
2
0.200
1_63
–H
–NO
2
–C
2
H
5
1.55
1_64
–H
–NO
2
–CH
3
0.316
1_65
–H
–NO
2
0.204
1_66
–H
–NO
2
0.468
1_67
–H
–NO
2
–H
0.123
1_68
–H
–NO
2
–F
0.081
1_70
–H
–NO
2
–Br
0.162
1_71
–H
–NO
2
–I
0.224
1_86
–OCH
3
–OCH
3
13.8
1_87
–OCH
3
–OCH
3
37.2
1_90
–OCH
3
OCH
3
–F
43.7
1_94
–OCH
3
OCH
3
50.1
1_95
–OCH
3
OCH
3
–NH
2
0.214
1_99
–OCH
3
OCH
3
–H
9.77
1_100
–OCH
3
OCH
3
–F
38.0
1_104
–OCH
3
OCH
3
–NH
2
4.17
1_105
–OCH
3
OCH
3
–N(CH
3
)
2
17.8
1_106
–OCH
3
OCH
3
1.70
1_107
–OCH
3
OCH
3
–C
2
H
5
2.00
1_108
–OCH
3
OCH
3
–H
0.631
1_109
–OCH
3
–OCH
3
–F
6.03
1_110
–OCH
3
–OCH
3
18.2
1_111
–OCH
3
–OCH
3
18.6
1_112
–OCH
3
–OCH
3
–NO
2
15.8