Dimethylformamide → (S)-2-(3'-Methylaminomethyl-biphenyl-3-ylcarbamoyl)-pyrrolidine-1-carboxylic acid benzyl ester

HRID 1865861Notes

Reaction equation

HRID 1865861 reaction equation
[CH2:1]([O:8][C:9]([N:11]1[CH2:15][CH2:14][CH2:13][C@H:12]1[C:16](=[O:33])[NH:17][C:18]1[CH:23]=[CH:22][CH:21]=[C:20](B2OC(C)(C)C(C)(C)O2)[CH:19]=1)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Br[C:35]1[CH:36]=[C:37]([CH:41]=[CH:42][CH:43]=1)[CH2:38][NH:39][CH3:40].CN(C=O)C>CO.C([O-])(O)=O.[Na+]>[CH2:1]([O:8][C:9]([N:11]1[CH2:15][CH2:14][CH2:13][C@H:12]1[C:16](=[O:33])[NH:17][C:18]1[CH:19]=[C:20]([C:35]2[CH:43]=[CH:42][CH:41]=[C:37]([CH2:38][NH:39][CH3:40])[CH:36]=2)[CH:21]=[CH:22][CH:23]=1)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

6

Reactant 3

HCID 6228DimethylformamideHCID 457588Benzenemethanamine, 3-bromo-N-methyl-HCID 24828649(S)-2-[3-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenylcarbamoyl]-pyrrolidine-1-carboxylic acid benzyl ester

Product 1

HCID 57977821(S)-2-(3'-Methylaminomethyl-biphenyl-3-ylcarbamoyl)-pyrrolidine-1-carboxylic acid benzyl ester

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 516892Sodium BicarbonateSolvent

Conditions

Temperature
70 °C

Procedure

A solution of (S)-2-[3-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenylcarbamoyl]-pyrrolidine-1-carboxylic acid benzyl ester (89.7 mg, 0.20 mmol), (3-bromo-benzyl)-methyl-amine (43.4 mg, 0.22 mmol), and Pd[P(Ph)3]4 (15.4 mg, 6.7 mol %) in methanol (2 mL), NaHCO3 (sat. aq., 300 μL), and DMF (400 μL) was degassed and heated to 70° C. overnight in a sealed vial. The reaction was cooled, filtered, and purified by reverse phase HPLC to give the desired product. The product was then converted to the HCl salt. After dissolving the product in a minimum amount of acetonitrile and cooling the solution in dry ice, 2.0M HCl in diethyl ether was added until precipitate crashed out of solution. The mixture was centrifuged, and the liquid was decanted. Additional cold diethyl ether was added, and the mixture was again centrifuged and the liquid decanted. The resulting solid was dried to give the HCl salt of the desired product. Yield 5.9 mg. MS: 444.2 (M+H+); H1 NMR (DMSO-d6): δ (ppm) 1.80-2.02 (m, 3H), 2.17-2.35 (m, 1H), 2.53-2.64 (t, 3H), 3.39-3.57 (m, 2H), 4.15-4.23 (t, 2H), 4.33-4.44 (m, 1H), 4.60-5.12 (m, 2H), 7.02-7.76 (m, 12H), 8.06-8.12 (m, 1H), 8.78-8.93 (s, 1H), 10.10-10.25 (s, 1H).

Workup

  1. temperatureThe reaction was cooled
  2. filtrationfiltered
  3. custompurified by reverse phase HPLC

Sources & evidence

ORD record
ord-10a6d26acd504517b68bf2dcf4c3f701
Source dataset
uspto-grants-2009_12
Patent number
US07629340B2

Reaction notes

Loading…