Diisopropylethylamine → 4-[4-Phenyl-1-(3-phenyl-propyl)-butylcarbamoyl]-piperidine-1-carboxylic acid tert-butyl ester

HRID 2120878Notes

Reaction equation

HRID 2120878 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([C:14]([OH:16])=O)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].Cl.[C:18]1([CH2:24][CH2:25][CH2:26][CH:27]([NH2:37])[CH2:28][CH2:29][CH2:30][C:31]2[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=2)[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1.C(N(C(C)C)CC)(C)C.C1CN([P+](ON2N=NC3C=CC=CC2=3)(N2CCCC2)N2CCCC2)CC1.F[P-](F)(F)(F)(F)F>C(Cl)Cl>[C:31]1([CH2:30][CH2:29][CH2:28][CH:27]([NH:37][C:14]([CH:11]2[CH2:10][CH2:9][N:8]([C:6]([O:5][C:1]([CH3:2])([CH3:3])[CH3:4])=[O:7])[CH2:13][CH2:12]2)=[O:16])[CH2:26][CH2:25][CH2:24][C:18]2[CH:19]=[CH:20][CH:21]=[CH:22][CH:23]=2)[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 3928711-(tert-Butoxycarbonyl)-4-piperidinecarboxylic acidHCID 2724699PyBOPHCID 218922551,7-Diphenyl-4-aminoheptane hydrochloride

Product 1

HCID 121367444-[4-Phenyl-1-(3-phenyl-propyl)-butylcarbamoyl]-piperidine-1-carboxylic acid tert-butyl ester

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

1-tert-Butoxycarbonyl-piperidine-4-carboxylic acid (4.00 g; 17.4 mmol) is dissolved in methylene chloride (125 mL) at ambient temperature. 1,7-Diphenyl-4-aminoheptane hydrochloride (1) (6.36 g; 20.9 mmol), diisopropylethylamine (7.27 g; 55.8 mmol), and PyBOP (10.89 g; 20.9 mmol) are added sequentially. The mixture is stirred for 14 hours at ambient temperature then concentrated in vacuo at 40° C. The residue is purified via silica gel chromatography with gradient elution (20%→40% ethyl acetate in hexanes) affording the desired product as an oil.

Workup

  1. concentrationthen concentrated in vacuo at 40° C
  2. customThe residue is purified via silica gel chromatography with gradient elution (20%→40% ethyl acetate in hexanes)

Sources & evidence

ORD record
ord-c85d33636e674539b1e3e41080325e32
Source dataset
uspto-grants-2004_02
Patent number
US06693099B2

Reaction notes

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