Ethyl isocyanate → (3R)-3-{[8-(2-chlorophenyl)-9-(4-chlorophenyl)-9H-purin-6-yl]amino}-N-ethylpiperidine-1-carboxamide

HRID 715624Notes

Reaction equation

HRID 715624 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[N:9]([C:24]2[CH:29]=[CH:28][C:27]([Cl:30])=[CH:26][CH:25]=2)[C:10]2[C:15]([N:16]=1)=[C:14]([NH:17][C@@H:18]1[CH2:23][CH2:22][CH2:21][NH:20][CH2:19]1)[N:13]=[CH:12][N:11]=2.C(N(CC)CC)C.[CH2:38]([N:40]=[C:41]=[O:42])[CH3:39]>C1COCC1>[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[N:9]([C:24]2[CH:25]=[CH:26][C:27]([Cl:30])=[CH:28][CH:29]=2)[C:10]2[C:15]([N:16]=1)=[C:14]([NH:17][C@@H:18]1[CH2:23][CH2:22][CH2:21][N:20]([C:41]([NH:40][CH2:38][CH3:39])=[O:42])[CH2:19]1)[N:13]=[CH:12][N:11]=2

Participants

5

Reactant 3

HCID 8022Ethyl isocyanateHCID 8471TriethylamineHCID 714573458-(2-chlorophenyl)-9-(4-chlorophenyl)-N-[(3R)-piperidin-3-yl]-9H-purin-6-amine

Product 1

HCID 71450191(3R)-3-{[8-(2-chlorophenyl)-9-(4-chlorophenyl)-9H-purin-6-yl]amino}-N-ethylpiperidine-1-carboxamideYield 65%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of 8-(2-chlorophenyl)-9-(4-chlorophenyl)-N-[(3R)-piperidin-3-yl]-9H-purin-6-amine (20 mg, 0.046 mmol, 1 eq.) in 2 mL of THF was added triethylamine (0.02 mL, 0.137 mmol, 3 eq.) and ethyl isocyanate (0.005 mL, 0.068 mmol, 1.5 eq). The reaction is stirred for 16 h. The reaction was concentrated in vacuo. The crude material was purified by silica gel column chromatography using 0-100% ethyl acetate/hexanes to yield 15 mg (65%) of (3R)-3-{[8-(2-chlorophenyl)-9-(4-chlorophenyl)-9H-purin-6-yl]amino}-N-ethylpiperidine-1-carboxamide. 1H NMR (300 MHz, CHLOROFORM-d) δ ppm 1.03-1.34 (m, 3 H) 1.56-1.96 (m, 4 H) 2.18 (br. s., 1 H) 3.07 (br. s., 2 H) 3.32 (br. s., 1 H) 3.73-4.42 (m, 3 H) 5.05 (br. s., 1 H) 6.02 (d, J=5.84 Hz, 1 H) 7.09-7.63 (m, 8 H) 8.45 (br. s., 1 H), [M+H]+ 510.3.

Workup

  1. concentrationThe reaction was concentrated in vacuo
  2. customThe crude material was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-9b76dde467d0491192aeb403ee728e4f
Source dataset
uspto-grants-2015_11
Patent number
US09187480B2

Reaction notes

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