Nitrogen → 3-{5-[4-(6-[2-[1-(2-Methoxycarbonylamino-3-methyl-butyryl)-pyrrolidin-2-yl]-3H-imidazol-4-yl}-naphthalen-2-yl)-phenyl]-1H-imidazol-2-yl}-2-aza-bicyclo[2.2.1]heptane-2-carboxylic acid tert-butyl ester

HRID 2392414Notes

Reaction equation

HRID 2392414 reaction equation
[CH3:1][O:2][C:3](=[O:40])[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]2[CH:30]=[CH:29][C:28]3[C:23](=[CH:24][CH:25]=[C:26](B4OC(C)(C)C(C)(C)O4)[CH:27]=3)[CH:22]=2)=[CH:19][N:20]=1)=[O:10])[CH:6]([CH3:8])[CH3:7].[C:41]([O:45][C:46]([N:48]1[CH2:53][CH:52]2[CH2:54][CH:49]1[CH2:50][CH2:51]2)=[O:47])([CH3:44])([CH3:43])[CH3:42].C([O-])([O-])=O.[K+].[K+].N#N>COCCOC.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>[C:41]([O:45][C:46]([N:48]1[CH:53]([C:16]2[NH:17][C:18]([C:21]3[CH:30]=[CH:29][C:28]([C:26]4[CH:25]=[CH:24][C:23]5[C:28](=[CH:29][CH:30]=[C:21]([C:18]6[NH:17][C:16]([CH:12]7[CH2:13][CH2:14][CH2:15][N:11]7[C:9](=[O:10])[CH:5]([NH:4][C:3]([O:2][CH3:1])=[O:40])[CH:6]([CH3:7])[CH3:8])=[N:20][CH:19]=6)[CH:22]=5)[CH:27]=4)=[CH:23][CH:22]=3)=[CH:19][N:20]=2)[CH:52]2[CH2:54][CH:49]1[CH2:50][CH2:51]2)=[O:47])([CH3:44])([CH3:42])[CH3:43]

Participants

7

Reactant 4

HCID 947NitrogenHCID 11430Potassium CarbonateHCID 53415251Tert-butyl 2-azabicyclo[2.2.1]heptane-2-carboxylateHCID 66620765[2-Methyl-1-(2-{4-[6-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-naphthalen-2-yl]-1H-imidazol-2-yl}-pyrrolidine-1-carbonyl)-propyl]-carbamic acid methyl ester

Product 1

HCID 666214363-{5-[4-(6-[2-[1-(2-Methoxycarbonylamino-3-methyl-butyryl)-pyrrolidin-2-yl]-3H-imidazol-4-yl}-naphthalen-2-yl)-phenyl]-1H-imidazol-2-yl}-2-aza-bicyclo[2.2.1]heptane-2-carboxylic acid tert-butyl esterYield 32.6%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 80711,2-DimethoxyethaneSolvent

Conditions

Temperature
80 °C

Procedure

A solution of [2-Methyl-1-(2-{5-[6-(4,4,5,5-tetramethyl-[1,3 ,2]dioxaborolan-2-yl)-naphthalen-2-yl]-1H-imidazol-2-yl}-pyrrolidine-1-carbonyl)-propyl]-carbamic acid methyl ester (500 mg, 0.92 mmol), 345-(4-Bromo-phenyl)-1H-imidazol-2-yl]-2-aza-bicyclo[2.2.1]heptane-2-carboxylic acid tert-butyl ester (383 mg, 0.92 mmol) and aq K2CO3 (920 μl of a 2M solution, 1.84 mmol) in DME (9 mL) was degassed with N2 gas for 20 minutes. To the degassed solution was added Pd(PPh3)4 (106 mg, 0.092 mmol) and PdCl2dppf (75 mg, 0.092 mmol) and then the reaction was heated to 80° C. overnight. After cooling to room temperature, the reaction was quenched with acetic acid, filtered, and then concentrated. The crude product was purified by reverse phase preparative HPLC (5-50% MeCN—H2O; 0.1% formic acid modifier) to afford 3-{5-[4-(6-{2-[1-(2-Methoxycarbonylamino-3-methyl-butyryl)-pyrrolidin-2-yl]-3H-imidazol-4-yl}-naphthalen-2-yl)-phenyl]-1H-imidazol-2-yl}-2-aza-bicyclo[2.2.1]heptane-2-carboxylic acid tert-butyl ester (112 mg, 0.15 mmol, 16% yield). LCMS-ESI+: calc'd for C44H52N7O5: 758.4 (M+H+). Found: 758.0 (M+H+). [1-(2-{5-[6-(4-{2-[2-(2-Methoxycarbonylamino-3-methyl-butyryl)-2-aza-bicyclo[2.2.1]hept-3-yl]-3H-imidazol-4-yl}-phenyl)-naphthalen-2-yl]-1H-imidazol-2-yl}-pyrrolidine-1-carbonyl)-2-methyl-propyl]-carbamic acid methyl ester: To 3-{5-[4-(6-{2-[1-(2-Methoxycarbonylamino-3-methyl-butyryl)-pyrrolidin-2-yl]-3H-imidazol-4-yl}-naphthalen-2-yl)-phenyl]-1H-imidazol-2-yl}-2-aza-bicyclo[2.2.1]heptane-2-carboxylic acid tert-butyl ester (60 mg, 0.092 mmol) in dioxanes (3 mL) was added 4N HCl in dioxanes (1 mL). The suspension was stirred overnight then concentrated to afford the HCl salt of the crude amine, which was purified by reverse phase preparative HPLC (5-45% MeCN—H2O; 0.1% formic acid modifier) and concentrated. The formate salt was dissolved in MeOH then passed through an ion-exchange column (StratoSpheres SPE PL-HCO3 MP SE) to afford the free amine (30 mg, 0.046 mmol, 58%). To the amine (30 mg, 0.046 mmol) in DMF (1 mL) was added N-methylmorpholine (10 □L, 0.092 mmol). After all material dissolved, 2-methoxycarbonylamino-3-methyl-butyric acid (12 mg, 0.068 mmol) and HATU (19 mg, 0.051 mmol) were added. After stirring for 3 hours the reaction was quenched with AcOH then purified by reverse phase preparative HPLC (5-45% MeCN—H2O; 0.1% formic acid modifier) to afford [1-(2-{5-[6-(4-{2-[2-(2-Methoxycarbonylamino-3-methyl-butyryl)-2-aza-bicyclo[2.2.1]hept-3-yl]-3H-imidazol-4-yl}-phenyl)-naphthalen-2-yl]-1H-imidazol-2-yl}-pyrrolidine-1-carbonyl)-2-methyl-propyl]-carbamic acid methyl ester (29 mg, 0.036 mmol, 77% yield). 1H-NMR: 400 MHz, (DMSO-d6) δ: 8.04 (s, 1H), 7.86 (s, 1H), 7.71 (d, 2H), 7.63-7.58 (m, 4H), 7.52 (d, 2H), 7.26 (s, 1H), 7.14 (s, 1H), 6.17 (m, 2H), 5.21 (m, 1H), 4.67 (s, 1H), 4.52 (s, 1H), 4.35-4.26 (m, 2H), 3.86 (m, 1H), 3.79 (m, 1H), 3.64 (s, 6H), 2.90 (m, 1H), 2.43 (m, 1H), 2.30-2.1.82 (m, 9H), 1.55 (d, 2H), 1.02-0.87 (m, 12H). LCMS-ESI+: calc'd for C46H55N8O6: 815.3 (M+H+). Found: 815.4 (M+H+).

Workup

  1. temperatureAfter cooling to room temperature
  2. customthe reaction was quenched with acetic acid
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customThe crude product was purified by reverse phase preparative HPLC (5-50% MeCN—H2O; 0.1% formic acid modifier)

Sources & evidence

ORD record
ord-d38509ca6fb54298a6c27865581b15aa
Source dataset
uspto-grants-2012_09
Patent number
US08273341B2

Reaction notes

Loading…