Dimethylformamide → HCID 91588840, compound

HRID 2307757Notes

Reaction equation

[C:1]([C:3]1[CH:4]=[C:5]([O:9][CH2:10][C@@H:11]([NH:22][C:23](=[O:29])[O:24][C:25]([CH3:28])([CH3:27])[CH3:26])[CH2:12][C:13]2[C:21]3[C:16](=[CH:17][CH:18]=[CH:19][CH:20]=3)[NH:15][CH:14]=2)[CH:6]=[N:7][CH:8]=1)#[CH:2].Cl.Br[C:32]1[CH:37]=[CH:36][N:35]=[CH:34][CH:33]=1.CN(C=O)C.C(N(CC)CC)C>[Cu]I.C(OCC)(=O)C>[NH:15]1[C:16]2[C:21](=[CH:20][CH:19]=[CH:18][CH:17]=2)[C:13]([CH2:12][C@H:11]([NH:22][C:23](=[O:29])[O:24][C:25]([CH3:26])([CH3:28])[CH3:27])[CH2:10][O:9][C:5]2[CH:6]=[N:7][CH:8]=[C:3]([C:1]#[C:2][C:32]3[CH:37]=[CH:36][N:35]=[CH:34][CH:33]=3)[CH:4]=2)=[CH:14]1

Participants

Conditions

Temperature: 50 °C

Procedure

A mixture of Example 14B (150 mg, 0.384 mmol), 4-bromopyridine hydrochloride (75 mg, 0.34 mmol), Pd2Cl2(PPh3)2 (27 mg, 0.0384 mmol), and CuI (18 mg, 0.093 mmol), was purged with nitrogen, treated with DMF (4 mL) and triethylamine (214 μL, 1.54 mmol), stirred at 50° C. for 20 hours, cooled to room temperature, treated with ethyl acetate (50 mL), washed with brine, dried (MgSO4), filtered, and concentrated. The residual oil was purified by flash column chromatography on silica gel with 2:1 ethyl acetate/hexanes to provide the desired product (122 mg, 68%). MS (APCI) m/e 469 (M+H)+.

Workup

temperaturecooled to room temperature
washwashed with brine
dry with materialdried (MgSO4)
filtrationfiltered
concentrationconcentrated
customThe residual oil was purified by flash column chromatography on silica gel with 2:1 ethyl acetate/hexanes

Sources & evidence

ORD record: ord-78292f70298b4febad8201fb18182849
Source dataset: uspto-grants-2004_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06831175B2

Reaction notes

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