Acetic Acid → Tert-butyl(1-(2-(7-((ethylamino)methyl)-[1,2,4]triazolo[4,3-a]pyridin-3-yl)quinolin-8-yl)piperidin-4-yl)methylcarbamate

HRID 1041967Notes

Reaction equation

HRID 1041967 reaction equation
[CH:1]([C:3]1[CH:8]=[CH:7][N:6]2[C:9]([C:12]3[CH:21]=[CH:20][C:19]4[C:14](=[C:15]([N:22]5[CH2:27][CH2:26][CH:25]([CH2:28][NH:29][C:30](=[O:36])[O:31][C:32]([CH3:35])([CH3:34])[CH3:33])[CH2:24][CH2:23]5)[CH:16]=[CH:17][CH:18]=4)[N:13]=3)=[N:10][N:11]=[C:5]2[CH:4]=1)=O.[CH2:37]([NH2:39])[CH3:38].CC(O)=O.[BH-](OC(C)=O)(OC(C)=O)OC(C)=O.[Na+]>C(Cl)Cl.CO>[CH2:37]([NH:39][CH2:1][C:3]1[CH:8]=[CH:7][N:6]2[C:9]([C:12]3[CH:21]=[CH:20][C:19]4[C:14](=[C:15]([N:22]5[CH2:27][CH2:26][CH:25]([CH2:28][NH:29][C:30](=[O:36])[O:31][C:32]([CH3:34])([CH3:35])[CH3:33])[CH2:24][CH2:23]5)[CH:16]=[CH:17][CH:18]=4)[N:13]=3)=[N:10][N:11]=[C:5]2[CH:4]=1)[CH3:38]

Participants

6

Reactant 4

HCID 176Acetic AcidHCID 6341EthylamineHCID 5049666Sodium triacetoxyborohydrideHCID 86654350Tert-butyl (1-(2-(7-formyl-[1,2,4]triazolo[4,3-a]pyridin-3-yl)quinolin-8-yl)piperidin-4-yl)methylcarbamate

Product 1

HCID 91546827Tert-butyl(1-(2-(7-((ethylamino)methyl)-[1,2,4]triazolo[4,3-a]pyridin-3-yl)quinolin-8-yl)piperidin-4-yl)methylcarbamate

Reagents, catalysts & solvents 1

HCID 21226129Dichloromethane methanolSolvent

Procedure

To tert-butyl (1-(2-(7-formyl-[1,2,4]triazolo[4,3-a]pyridin-3-yl)quinolin-8-yl)piperidin-4-yl)methylcarbamate (Example 11, steps A-K; 10 mg, 0.021 mmol) in DCM/MeOH (1 mL/1 mL) was added EtNH2 (0.1 mL, 2M in THF) and HOAc (0.2 mL), followed by NaB(OAc)3H (13 mg, 0.062 mmol). The reaction mixture was stirred for 5 hours at ambient temperature and then concentrated. The crude material was purified by silica gel chromatography (DCM/MeOH/NH4OH 20:1:0.1) to provide the desired product (4 mg). MS APCI (+) m/z 343 (M+1) detected.

Workup

  1. concentrationconcentrated
  2. customThe crude material was purified by silica gel chromatography (DCM/MeOH/NH4OH 20:1:0.1)

Sources & evidence

ORD record
ord-6cd836d06d5642508973426c17bdb472
Source dataset
uspto-grants-2013_10
Patent number
US08557809B2

Reaction notes

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