6-[[(S)-[3-(1-bicyclo[1.1.1]pentanyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile;6-[[(S)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-pyridin-3-ylmethyl]amino]-8-chloro-4-(4-fluoro-3-methylanilino)quinoline-3-carbonitrile;6-[[(R)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-(1,3-thiazol-5-yl)methyl]amino]-8-chloro-4-(3-chloro-4-methylanilino)quinoline-3-carbonitrile;6-[[(S)-[3-(1-cyclopropylcyclopropyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile

C129H132Cl3F11N34S — CID 159458690

About 6-[[(S)-[3-(1-bicyclo[1.1.1]pentanyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile;6-[[(S)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-pyridin-3-ylmethyl]amino]-8-chloro-4-(4-fluoro-3-methylanilino)quinoline-3-carbonitrile;6-[[(R)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-(1,3-thiazol-5-yl)methyl]amino]-8-chloro-4-(3-chloro-4-methylanilino)quinoline-3-carbonitrile;6-[[(S)-[3-(1-cyclopropylcyclopropyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile

6-[[(S)-[3-(1-bicyclo[1.1.1]pentanyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile;6-[[(S)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-pyridin-3-ylmethyl]amino]-8-chloro-4-(4-fluoro-3-methylanilino)quinoline-3-carbonitrile;6-[[(R)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-(1,3-thiazol-5-yl)methyl]amino]-8-chloro-4-(3-chloro-4-methylanilino)quinoline-3-carbonitrile;6-[[(S)-[3-(1-cyclopropylcyclopropyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile (PubChem CID 159458690) has the molecular formula C129H132Cl3F11N34S and a molecular weight of 2506.12 g/mol. Its IUPAC name is 6-[[(S)-[3-(1-bicyclo[1.1.1]pentanyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile;6-[[(S)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-pyridin-3-ylmethyl]amino]-8-chloro-4-(4-fluoro-3-methylanilino)quinoline-3-carbonitrile;6-[[(R)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-(1,3-thiazol-5-yl)methyl]amino]-8-chloro-4-(3-chloro-4-methylanilino)quinoline-3-carbonitrile;6-[[(S)-[3-(1-cyclopropylcyclopropyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile.

Molecular Properties

• Compound Name: 6-[[(S)-[3-(1-bicyclo[1.1.1]pentanyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile;6-[[(S)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-pyridin-3-ylmethyl]amino]-8-chloro-4-(4-fluoro-3-methylanilino)quinoline-3-carbonitrile;6-[[(R)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-(1,3-thiazol-5-yl)methyl]amino]-8-chloro-4-(3-chloro-4-methylanilino)quinoline-3-carbonitrile;6-[[(S)-[3-(1-cyclopropylcyclopropyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile
• PubChem CID: 159458690
• Molecular Formula: C129H132Cl3F11N34S
• Molecular Weight: 2506.12 g/mol
• Exact Mass: 2503.00
• IUPAC Name: 6-[[(S)-[3-(1-bicyclo[1.1.1]pentanyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile;6-[[(S)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-pyridin-3-ylmethyl]amino]-8-chloro-4-(4-fluoro-3-methylanilino)quinoline-3-carbonitrile;6-[[(R)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-(1,3-thiazol-5-yl)methyl]amino]-8-chloro-4-(3-chloro-4-methylanilino)quinoline-3-carbonitrile;6-[[(S)-[3-(1-cyclopropylcyclopropyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile
• SMILES: C#Cc1cnc2c(C#N)cc(N[C@H](C3=C(F)N(C4(C5CC5)CC4)NN3)c3ccc(F)nc3C)cc2c1NCC(C)(C)C(F)(F)F.C#Cc1cnc2c(C#N)cc(N[C@H](C3=C(F)N(C45CC(C4)C5)NN3)c3ccc(F)nc3C)cc2c1NCC(C)(C)C(F)(F)F.Cc1cc(Nc2c(C#N)cnc3c(Cl)cc(N[C@H](C4=CN(C5CCN(C(C)(C)C)CC5)NN4)c4cccnc4)cc23)ccc1F.Cc1ccc(Nc2c(C#N)cnc3c(Cl)cc(N[C@H](C4=CN(C5CCN(C(C)(C)C)CC5)NN4)c4cncs4)cc23)cc1Cl
• InChI: InChI=1S/C34H37ClFN9.C32H35Cl2N9S.C32H31F5N8.C31H29F5N8/c1-21-14-24(7-8-29(21)36)40-31-23(17-37)19-39-33-27(31)15-25(16-28(33)35)41-32(22-6-5-11-38-18-22)30-20-45(43-42-30)26-9-12-44(13-10-26)34(2,3)4;1-19-5-6-21(12-25(19)33)38-29-20(14-35)15-37-30-24(29)11-22(13-26(30)34)39-31(28-16-36-18-44-28)27-17-43(41-40-27)23-7-9-42(10-8-23)32(2,3)4;1-5-18-15-39-26-19(14-38)12-21(13-23(26)25(18)40-16-30(3,4)32(35,36)37)42-27(22-8-9-24(33)41-17(22)2)28-29(34)45(44-43-28)31(10-11-31)20-6-7-20;1-5-18-14-38-25-19(13-37)8-20(9-22(25)24(18)39-15-29(3,4)31(34,35)36)41-26(21-6-7-23(32)40-16(21)2)27-28(33)44(43-42-27)30-10-17(11-30)12-30/h5-8,11,14-16,18-20,26,32,41-43H,9-10,12-13H2,1-4H3,(H,39,40);5-6,11-13,15-18,23,31,39-41H,7-10H2,1-4H3,(H,37,38);1,8-9,12-13,15,20,27,42-44H,6-7,10-11,16H2,2-4H3,(H,39,40);1,6-9,14,17,26,41-43H,10-12,15H2,2-4H3,(H,38,39)/t32-;31-;27-;17?,26-,30?/m0100/s1
• InChIKey: LUHRVWQKKVLGCL-VQUIIIRWSA-N
• XLogP: 27.02
• TPSA: 410.20 Ų
• H-Bond Donors: 16
• H-Bond Acceptors: 35
• Rotatable Bonds: 31
• Heavy Atoms: 178
• Complexity: —

Lipinski Rule of Five

4 violations

Rule	Value
MW ≤ 500	2506.12
LogP ≤ 5	27.02
H-Bond Donors ≤ 5	16
H-Bond Acceptors ≤ 10	35

Computed Properties (RDKit)

• Structural Alerts: {'alert_name': '2-halo_pyridine', 'substructure': 'N/A'}, {'alert_name': 'N-C-halo', 'substructure': 'N/A'}, {'alert_name': 'triple_bond', 'substructure': 'N/A'}

Frequently Asked Questions

What is the IUPAC name of 6-[[(S)-[3-(1-bicyclo[1.1.1]pentanyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile;6-[[(S)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-pyridin-3-ylmethyl]amino]-8-chloro-4-(4-fluoro-3-methylanilino)quinoline-3-carbonitrile;6-[[(R)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-(1,3-thiazol-5-yl)methyl]amino]-8-chloro-4-(3-chloro-4-methylanilino)quinoline-3-carbonitrile;6-[[(S)-[3-(1-cyclopropylcyclopropyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile?

The IUPAC name of 6-[[(S)-[3-(1-bicyclo[1.1.1]pentanyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile;6-[[(S)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-pyridin-3-ylmethyl]amino]-8-chloro-4-(4-fluoro-3-methylanilino)quinoline-3-carbonitrile;6-[[(R)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-(1,3-thiazol-5-yl)methyl]amino]-8-chloro-4-(3-chloro-4-methylanilino)quinoline-3-carbonitrile;6-[[(S)-[3-(1-cyclopropylcyclopropyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile (CID 159458690) is 6-[[(S)-[3-(1-bicyclo[1.1.1]pentanyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile;6-[[(S)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-pyridin-3-ylmethyl]amino]-8-chloro-4-(4-fluoro-3-methylanilino)quinoline-3-carbonitrile;6-[[(R)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-(1,3-thiazol-5-yl)methyl]amino]-8-chloro-4-(3-chloro-4-methylanilino)quinoline-3-carbonitrile;6-[[(S)-[3-(1-cyclopropylcyclopropyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile.

What is the SMILES notation for 6-[[(S)-[3-(1-bicyclo[1.1.1]pentanyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile;6-[[(S)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-pyridin-3-ylmethyl]amino]-8-chloro-4-(4-fluoro-3-methylanilino)quinoline-3-carbonitrile;6-[[(R)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-(1,3-thiazol-5-yl)methyl]amino]-8-chloro-4-(3-chloro-4-methylanilino)quinoline-3-carbonitrile;6-[[(S)-[3-(1-cyclopropylcyclopropyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile?

The canonical SMILES for 6-[[(S)-[3-(1-bicyclo[1.1.1]pentanyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile;6-[[(S)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-pyridin-3-ylmethyl]amino]-8-chloro-4-(4-fluoro-3-methylanilino)quinoline-3-carbonitrile;6-[[(R)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-(1,3-thiazol-5-yl)methyl]amino]-8-chloro-4-(3-chloro-4-methylanilino)quinoline-3-carbonitrile;6-[[(S)-[3-(1-cyclopropylcyclopropyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile is C#Cc1cnc2c(C#N)cc(N[C@H](C3=C(F)N(C4(C5CC5)CC4)NN3)c3ccc(F)nc3C)cc2c1NCC(C)(C)C(F)(F)F.C#Cc1cnc2c(C#N)cc(N[C@H](C3=C(F)N(C45CC(C4)C5)NN3)c3ccc(F)nc3C)cc2c1NCC(C)(C)C(F)(F)F.Cc1cc(Nc2c(C#N)cnc3c(Cl)cc(N[C@H](C4=CN(C5CCN(C(C)(C)C)CC5)NN4)c4cccnc4)cc23)ccc1F.Cc1ccc(Nc2c(C#N)cnc3c(Cl)cc(N[C@H](C4=CN(C5CCN(C(C)(C)C)CC5)NN4)c4cncs4)cc23)cc1Cl.

What is the InChIKey of 6-[[(S)-[3-(1-bicyclo[1.1.1]pentanyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile;6-[[(S)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-pyridin-3-ylmethyl]amino]-8-chloro-4-(4-fluoro-3-methylanilino)quinoline-3-carbonitrile;6-[[(R)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-(1,3-thiazol-5-yl)methyl]amino]-8-chloro-4-(3-chloro-4-methylanilino)quinoline-3-carbonitrile;6-[[(S)-[3-(1-cyclopropylcyclopropyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile?

The InChIKey is LUHRVWQKKVLGCL-VQUIIIRWSA-N. The full InChI is InChI=1S/C34H37ClFN9.C32H35Cl2N9S.C32H31F5N8.C31H29F5N8/c1-21-14-24(7-8-29(21)36)40-31-23(17-37)19-39-33-27(31)15-25(16-28(33)35)41-32(22-6-5-11-38-18-22)30-20-45(43-42-30)26-9-12-44(13-10-26)34(2,3)4;1-19-5-6-21(12-25(19)33)38-29-20(14-35)15-37-30-24(29)11-22(13-26(30)34)39-31(28-16-36-18-44-28)27-17-43(41-40-27)23-7-9-42(10-8-23)32(2,3)4;1-5-18-15-39-26-19(14-38)12-21(13-23(26)25(18)40-16-30(3,4)32(35,36)37)42-27(22-8-9-24(33)41-17(22)2)28-29(34)45(44-43-28)31(10-11-31)20-6-7-20;1-5-18-14-38-25-19(13-37)8-20(9-22(25)24(18)39-15-29(3,4)31(34,35)36)41-26(21-6-7-23(32)40-16(21)2)27-28(33)44(43-42-27)30-10-17(11-30)12-30/h5-8,11,14-16,18-20,26,32,41-43H,9-10,12-13H2,1-4H3,(H,39,40);5-6,11-13,15-18,23,31,39-41H,7-10H2,1-4H3,(H,37,38);1,8-9,12-13,15,20,27,42-44H,6-7,10-11,16H2,2-4H3,(H,39,40);1,6-9,14,17,26,41-43H,10-12,15H2,2-4H3,(H,38,39)/t32-;31-;27-;17?,26-,30?/m0100/s1.

What are the key properties of 6-[[(S)-[3-(1-bicyclo[1.1.1]pentanyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile;6-[[(S)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-pyridin-3-ylmethyl]amino]-8-chloro-4-(4-fluoro-3-methylanilino)quinoline-3-carbonitrile;6-[[(R)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-(1,3-thiazol-5-yl)methyl]amino]-8-chloro-4-(3-chloro-4-methylanilino)quinoline-3-carbonitrile;6-[[(S)-[3-(1-cyclopropylcyclopropyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile?

6-[[(S)-[3-(1-bicyclo[1.1.1]pentanyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile;6-[[(S)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-pyridin-3-ylmethyl]amino]-8-chloro-4-(4-fluoro-3-methylanilino)quinoline-3-carbonitrile;6-[[(R)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-(1,3-thiazol-5-yl)methyl]amino]-8-chloro-4-(3-chloro-4-methylanilino)quinoline-3-carbonitrile;6-[[(S)-[3-(1-cyclopropylcyclopropyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile has a molecular weight of 2506.12 g/mol, XLogP of 27.02, 31 rotatable bonds, 16 hydrogen bond donors, and 35 hydrogen bond acceptors.

Where does this data come from?

All data for 6-[[(S)-[3-(1-bicyclo[1.1.1]pentanyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile;6-[[(S)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-pyridin-3-ylmethyl]amino]-8-chloro-4-(4-fluoro-3-methylanilino)quinoline-3-carbonitrile;6-[[(R)-[3-(1-tert-butylpiperidin-4-yl)-1,2-dihydrotriazol-5-yl]-(1,3-thiazol-5-yl)methyl]amino]-8-chloro-4-(3-chloro-4-methylanilino)quinoline-3-carbonitrile;6-[[(S)-[3-(1-cyclopropylcyclopropyl)-4-fluoro-1,2-dihydrotriazol-5-yl]-(6-fluoro-2-methyl-3-pyridinyl)methyl]amino]-3-ethynyl-4-[(3,3,3-trifluoro-2,2-dimethylpropyl)amino]quinoline-8-carbonitrile is sourced from PubChem (CID 159458690), the world's largest open chemistry database maintained by the National Library of Medicine (NIH).