Piperidine → (4-Isopropyl-piperazin-1-yl)-(6-piperidin-1-ylmethyl-pyridin-3-yl)-methanone

HRID 551576

Reaction equation

HRID 551576 reaction equation
CO[C:3](=[O:17])[C:4]1[CH:9]=[CH:8][C:7]([CH2:10][N:11]2[CH2:16][CH2:15][CH2:14][CH2:13][CH2:12]2)=[N:6][CH:5]=1.COC(=O)[C:21]1C=[CH:25][C:24]([CH:27]=O)=[N:23][CH:22]=1.[NH:30]1CCC[CH2:32][CH2:31]1.[BH-](OC(C)=O)(OC(C)=O)OC(C)=O.[Na+]>C(Cl)Cl.[OH-].[Na+]>[NH3:6].[CH:24]([N:23]1[CH2:22][CH2:21][N:30]([C:3]([C:4]2[CH:5]=[N:6][C:7]([CH2:10][N:11]3[CH2:12][CH2:13][CH2:14][CH2:15][CH2:16]3)=[CH:8][CH:9]=2)=[O:17])[CH2:31][CH2:32]1)([CH3:25])[CH3:27]

Participants

8

Reactant 4

HCID 8082PiperidineHCID 586269Methyl 6-formylpyridine-3-carboxylateHCID 5049666Sodium triacetoxyborohydrideHCID 44515770Methyl 6-(piperidin-1-ylmethyl)nicotinate

Product 2

HCID 222AmmoniaYield 1%HCID 11522780(4-Isopropyl-piperazin-1-yl)-(6-piperidin-1-ylmethyl-pyridin-3-yl)-methanoneYield 74%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 14798Sodium HydroxideSolvent

Procedure

6-Piperidin-1-ylmethyl-nicotinic acid methyl ester. To a solution of 6-formyl-nicotinic acid methyl ester (0.200 g, 1.21 mmol) and piperidine (0.14 mL, 1.33 mmol) in DCM (15 mL) was added NaB(OAc)3H (0.380 g, 1.80 mmol). After 18 h, the reaction was diluted with 1 N NaOH (10 mL) and extracted with DCM (2×50 mL). The organic layers were combined, dried (Na2SO4), and concentrated. Chromatography of the residue (SiO2; 1-3% 2 M NH3 in MeOH/DCM) gave the title compound as an oil (0.210 g, 74%).

Workup

  1. extractionextracted with DCM (2×50 mL)
  2. dry with materialdried (Na2SO4)
  3. concentrationconcentrated

Sources & evidence

ORD record
ord-2f926d3985e946eeba310fa414bb3afc
Source dataset
uspto-grants-2011_05
Patent number
US07947718B2

Linked notes

Loading…