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2-Aminobenzimidazole → {4-[(1H-Benzimidazol-2-ylamino)-methyl]-benzyl}-(1H-benzimidazol-2-ylmethyl)-(5,6,7,8-tetrahydro-quinolin-8-yl)-amine

HRID 747367
Notes
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Reaction equation

HRID 747367 reaction equation
[NH:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[CH2:10][N:11]([CH2:22][C:23]1[CH:30]=[CH:29][C:26]([CH:27]=O)=[CH:25][CH:24]=1)[CH:12]1[C:21]2[N:20]=[CH:19][CH:18]=[CH:17][C:16]=2[CH2:15][CH2:14][CH2:13]1.[NH2:31][C:32]1[NH:33][C:34]2[CH:40]=[CH:39][CH:38]=[CH:37][C:35]=2[N:36]=1.[BH3-]C#N.[Na+]>CO>[NH:33]1[C:34]2[CH:40]=[CH:39][CH:38]=[CH:37][C:35]=2[N:36]=[C:32]1[NH:31][CH2:27][C:26]1[CH:29]=[CH:30][C:23]([CH2:22][N:11]([CH2:10][C:2]2[NH:3][C:4]3[CH:9]=[CH:8][CH:7]=[CH:6][C:5]=3[N:1]=2)[CH:12]2[C:21]3[N:20]=[CH:19][CH:18]=[CH:17][C:16]=3[CH2:15][CH2:14][CH2:13]2)=[CH:24][CH:25]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 136242-AminobenzimidazoleHCID 5003444Sodium cyanoborohydrideHCID 219849824-{[(1H-benzimidazol-2-ylmethyl)-(5,6,7,8-tetrahydro-quinolin-8-yl)-amino]-methyl}-benzaldehyde

Product 1

HCID 22018650{4-[(1H-Benzimidazol-2-ylamino)-methyl]-benzyl}-(1H-benzimidazol-2-ylmethyl)-(5,6,7,8-tetrahydro-quinolin-8-yl)-amine

Reagents, catalysts & solvents 1

HCID 887
Methanol
Solvent

Procedure

Using General Procedure A: To a stirred solution of 4-{[(1H-benzimidazol-2-ylmethyl)-(5,6,7,8-tetrahydro-quinolin-8-yl)-amino]-methyl}-benzaldehyde (140 mg, 0.34 mmol) and 2-aminobenzimidazole (45 mg, 0.0.34 mmol) in MeOH (4 mL) was added NaBH3CN (64 mg, 1.1 mmol) and the mixture was stirred at room temperature for 20 hours. Purification of the crude yellow foam by column chromatography on silica gel (200: 1:1—EtOAc:MeOH:NH4OH) followed by radial chromatography on silica gel (100:1:1—CH2Cl2:MeOH:NH4OH) afforded AMD9693 (26 mg, 15%) as a white solid. 1H NMR (CDCl3) δ 1.57-1.74 (m, 1H), 1.87-2.05 (m, 2H), 2.10-2.20 (m, 1H), 2.63-2.75 (m, 1H), 2.75-2.90 (m, 1H), 3.54 (s, 2H), 3.86 (d, 1H, J=16.8 Hz), 4.03-4.16 (m, 2H), 4.24-4.35 (m, 2H), 5.44 (br s, 1H), 6.88-6.91 (m, 4H), 7.10-7.19 (m, 7H), 7.42 (d, 1H, J=7.5 Hz), 7.54 (br s, 2H), 8.65 (d, 1H, J=4.2 Hz); 13C NMR (CDCl3) δ 21.16, 24.26, 29.10, 46.66, 48.40, 53.29, 60.62, 111.39 (br), 118.11 (br), 120.13, 121.81, 122.37, 127.22, 128.57, 133.86, 134.79, 137.41, 138.17, 143.78, 146.67, 155.56, 156.41, 157.20. ES-MS m/z 514.4 (M+H). Anal. Cald. for C32H31N7.0.8CH2Cl2.0.4C4H8O2: C, 66.98; H, 5.85; N, 15.90. Found: C, 67.14; H, 5.66; N, 15.87.

Workup

  1. customPurification of the crude yellow foam by column chromatography on silica gel (200: 1:1—EtOAc:MeOH:NH4OH)
  2. customafforded AMD9693 (26 mg, 15%) as a white solid

Sources & evidence

ORD record
ord-15a6c744b41f49f98118dcebaf9035b0
Source dataset
uspto-grants-2008_07
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07396840B2

Reaction notes

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