Research Article
Receptor Guided 3D-QSAR: A Useful Approach for Designing of IGF-1R Inhibitors
Table 1
The structures and observed IGF inhibitory activities [
15].
| No. | Structure | R | IC50
(M) | pIC50 |
| 1 | A | 4-OBn | | 5.706 | 2 | A | 3-OH | | 6.286 | 3 | A | 3-OBn–4-OMe | | 5.870 | 4 | A | 3-OBn–4-OH | | 5.480 | 5* | B | Cyclopentyl | | 5.456 | 6 | B | Cyclohexyl | | 5.979 | 7* | B | –CH2–cyclopropyl | | 5.644 | 8* | B | –CH2–cyclohexyl | | 5.955 | 9 | B | –CH2CH2OMe | | 5.202 | 10 | B | –CH2–2-pyridyl | | 5.963 | 11 | C | H | | 6.218 | 12 | C | 2-F | | 6.650 | 13 | C | 3-F | | 6.292 | 14 | C | 4-F | | 5.910 | 15 | C | 2-Cl | | 6.465 | 16 | C | 3-Cl | | 5.674 | 17* | C | 4-Cl | 0.980 | 6.009 | 18 | C | 2-OCF2H | 3.28 | 5.484 | 19 | C | 3-OCF2H | 5.78 | 5.238 | 20 | C | 4-OCF2H | 2.82 | 5.550 | 21 | C | 2,3-Difluoro | 0.898 | 6.047 | 22 | C | 3,4-Difluoro | 4.48 | 5.349 | 23* | C | 2,5-Difluoro | 0.329 | 6.483 | 24 | C | 2,6-Difluoro | 0.215 | 6.668 | 25 | C | 3,5-Difluoro | 1.35 | 5.870 | 26 | C | 2,6-Dichloro | 1.67 | 5.777 | 27 | C | 2-Cl,6-F | 0.248 | 6.606 | 28 | D | Cyclopentyl | 1.05 | 5.979 | 29 | D | Cyclohexyl | 3.51 | 5.455 | 30 | D | Cycloheptyl | 3.79 | 5.421 | 31* | D | Phenyl | 1.68 | 5.775 | 32 | E | trans-NH2 | 0.221 | 6.656 | 33 | E | cis-NH2 | 0.775 | 6.111 | 34* | E | trans-NHMe | 0.105 | 6.979 | 35 | E | trans-Pyrrolodinyl | 1.82 | 5.740 | 36* | E | trans-Piperidinyl | 3.40 | 5.469 | 37 | E | trans-NHPh | 1.30 | 5.886 | 38 | E | trans-NHBn | 1.39 | 5.857 | 39 | F | trans-NH2 | 0.119 | 6.924 | 40 | F | cis-NH2 | 0.228 | 6.642 | 41 | F | trans-N(Et)2 | 0.115 | 6.939 | 42 | F | trans-Azetidinyl | 0.081 | 7.092 | 43 | F | trans-Pyrrolidinyl | 0.103 | 6.987 | 44* | F | trans-Morpholino | 0.091 | 7.041 | 45* | G | trans-Pyrrolidinyl | 0.116 | 6.936 | 46 | G | cis-Pyrrolidinyl | 0.089 | 7.051 | 47 | G | cis-NH2 | 0.060 | 7.222 | 48 | G | cis-NMe2 | 0.166 | 6.780 | 49* | G | cis-Piperidinyl | 0.237 | 6.625 | 50 | G | cis-Morpholino | 0.148 | 6.830 | 51 | G | cis-NH-iPr | 0.220 | 6.658 | 52 | G | cis-N(Me)-Piperizinyl | 0.265 | 6.577 | 53 | H | trans-NH2 | 0.526 | 6.279 | 54 | H | cis-NH2 | 0.554 | 6.256 |
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* Compounds used in the test set.
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