Sodium triacetoxyborohydride → HCID 178418909, compound

HRID 7180

Reaction equation

HRID 7180 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[CH:36]=[CH:35][NH:34][N:33]=1.[BH-](OC(C)=O)(OC(C)=O)OC(C)=O.[Na+]>C1COCC1.C(O)(=O)C>[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]([CH2:27][NH:31][C:32]2[CH:36]=[CH:35][NH:34][N:33]=2)=[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

Participants

6

Reactant 3

HCID 5049666Sodium triacetoxyborohydrideHCID 219849824-{[(1H-benzimidazol-2-ylmethyl)-(5,6,7,8-tetrahydro-quinolin-8-yl)-amino]-methyl}-benzaldehydeHCID 178418806HCID 178418806, compound

Product 1

HCID 178418909HCID 178418909, compoundYield 23%

Reagents, catalysts & solvents 2

HCID 176Acetic AcidSolventHCID 8028TetrahydrofuranSolvent

Procedure

Using General Procedure B: To a stirred solution of 4-{[(1H-Benzimidazol-2-ylmethyl)-(5,6,7,8-tetrahydro-quinolin-8-yl)-amino]-methyl}-benzaldehyde (199 mg, 0.50 mmol) and 3-aminopyrazole (60 mg, 0.72 mmol) in THF (5 mL) and acetic acid (0.2 mL) was added NaBH(OAc)3 (166 mg, 0.78 mmol) and the resultant mixture stirred at room temperature for 2.5 days. Purification of the crude material by radial chromatography on silica gel gel (2 mm plate, CH2Cl2/MeOH/NH4OH, 100:1:1 then 50:1:1) afforded the desired amine (52 mg, 23%) as a white foam.

Workup

  1. customPurification of the crude material by radial chromatography on silica gel gel (2 mm plate, CH2Cl2/MeOH/NH4OH, 100:1:1

Sources & evidence

ORD record
ord-47eedb33bf164f6fbd23e37cca184a59
Source dataset
uspto-grants-2006_08
Patent number
US07084155B2

Linked notes

Loading…