Triethylamine → (1-{2-[5-(6-{2-[1-(2-Methoxycarbonylamino-3-methyl-butyryl)-pyrrolidin-2-yl]-3H-imidazol-4-ylethynyl}-naphthalen-2-yl)-1H-imidazol-2-yl]-pyrrolidine-1-carbonyl}-2-methyl-propyl)-carbamic acid methyl ester

HRID 2392374Notes

Reaction equation

HRID 2392374 reaction equation
[CH3:1][O:2][C:3](=[O:23])[NH:4][CH:5]([C:9]([N:11]1[CH2:15][CH2:14][CH2:13][CH:12]1[C:16]1[NH:17][C:18]([C:21]#[CH:22])=[CH:19][N:20]=1)=[O:10])[CH:6]([CH3:8])[CH3:7].[CH3:24][O:25][C:26](=[O:55])[NH:27][CH:28]([C:32]([N:34]1[CH2:38][CH2:37][CH2:36][CH:35]1[C:39]1[NH:40][C:41]([C:44]2[CH:53]=[CH:52][C:51]3[C:46](=[CH:47][CH:48]=[C:49](Br)[CH:50]=3)[CH:45]=2)=[CH:42][N:43]=1)=[O:33])[CH:29]([CH3:31])[CH3:30].C(N(CC)CC)C>CN(C=O)C.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.[Cu]I>[CH3:24][O:25][C:26](=[O:55])[NH:27][CH:28]([C:32]([N:34]1[CH2:38][CH2:37][CH2:36][CH:35]1[C:39]1[NH:40][C:41]([C:44]2[CH:53]=[CH:52][C:51]3[C:46](=[CH:47][CH:48]=[C:49]([C:22]#[C:21][C:18]4[NH:17][C:16]([CH:12]5[CH2:13][CH2:14][CH2:15][N:11]5[C:9](=[O:10])[CH:5]([NH:4][C:3]([O:2][CH3:1])=[O:23])[CH:6]([CH3:8])[CH3:7])=[N:20][CH:19]=4)[CH:50]=3)[CH:45]=2)=[CH:42][N:43]=1)=[O:33])[CH:29]([CH3:31])[CH3:30]

Participants

7

Reactant 3

HCID 8471TriethylamineHCID 66620357(1-{2-[5-(6-Bromonaphthalen-2-yl)-1H-imidazol-2-yl]-pyrrolidine-1-carbonyl}-2-methyl-propyl)-carbamic acid methyl esterHCID 76818854{1-[2-(5-Ethynyl-1H-imidazol-2-yl)-pyrrolidine-1-carbonyl]-2-methyl-propyl}-carbamic acid methyl ester

Product 1

HCID 66620069(1-{2-[5-(6-{2-[1-(2-Methoxycarbonylamino-3-methyl-butyryl)-pyrrolidin-2-yl]-3H-imidazol-4-ylethynyl}-naphthalen-2-yl)-1H-imidazol-2-yl]-pyrrolidine-1-carbonyl}-2-methyl-propyl)-carbamic acid methyl esterYield 20%

Reagents, catalysts & solvents 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418397HCID 178418397, compoundCatalystHCID 6228DimethylformamideSolvent

Conditions

Temperature
80 °C

Procedure

{1-[2-(5-Ethynyl-1H-imidazol-2-yl)-pyrrolidine-1-carbonyl]-2-methyl-propyl}-carbamic acid methyl ester (53 mg, 0.166 mmol), (1-{2-[5-(6-Bromo-naphthalen-2-yl)-1H-imidazol-2-yl]-pyrrolidine-1-carbonyl}-2-methyl-propyl)-carbamic acid methyl ester (100 mg, 0.200 mmol), Pd(PPh3)4 (19 mg, 0.0166 mmol), CuI (3 mg, 0.0166 mmol) and triethylamine (0.230 mL, 1.66 mmol) were suspended in DMF (2 mL) and the mixture was degassed for 10 min with nitrogen. The reaction mixture was stirred at 80° C. for 1 hours then cooled to RT. Formic acid (0.1 mL) and water (1 mL) were added and the mixture was purified by reverse phase preparative HPLC, giving (1-{2-[5-(6-{2-[1-(2-Methoxycarbonylamino-3-methyl-butyryl)-pyrrolidin-2-yl]-3H-imidazol-4-ylethynyl}-naphthalen-2-yl)-1H-imidazol-2-yl]-pyrrolidine-1-carbonyl}-2-methyl-propyl)-carbamic acid methyl ester (24 mg, 20%). (DMSO-d6, 400 MHz) 12.00-11.85 (m, 2H), 7.99-7.83 (m, 4H), 7.64 (s, 1H), 7.48 (m, 1H), 7.42 (s, 1H), 7.29 (m, 2H), 5.10 (m, 1H), 5.03 (m, 1H), 4.06 (m, 2H), 3.82-3.76 (m, 4H), 3.54 (s, 6H), 2.15-1.97 (m, 10H), 0.94-0.81 (m, 12H); MS (ESI) m/z 737 [M+H]+.

Workup

  1. customthe mixture was degassed for 10 min with nitrogen
  2. temperaturethen cooled to RT
  3. additionFormic acid (0.1 mL) and water (1 mL) were added
  4. customthe mixture was purified by reverse phase preparative HPLC

Sources & evidence

ORD record
ord-4757006b7e294b728c33f7b432e2d4b0
Source dataset
uspto-grants-2012_09
Patent number
US08273341B2

Reaction notes

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