Isopropyl iodide → HCID 86711416, compound

HRID 926342Notes

Reaction equation

HRID 926342 reaction equation
[OH:1][C:2]1[CH:11]=[CH:10][CH:9]=[C:8]2[C:3]=1[CH2:4][CH2:5][N:6]1[C:16](=[O:17])[CH2:15][N:14]=[C:13]([N:18]3[CH:22]=[C:21]([CH2:23][O:24][CH3:25])[N:20]=[CH:19]3)[CH:12]=[C:7]12.C(=O)([O-])[O-].[Cs+].[Cs+].[CH:32](I)([CH3:34])[CH3:33]>C1COCC1.CN(C=O)C>[CH:32]([O:1][C:2]1[CH:11]=[CH:10][CH:9]=[C:8]2[C:3]=1[CH2:4][CH2:5][N:6]1[C:16](=[O:17])[CH2:15][N:14]=[C:13]([N:18]3[CH:22]=[C:21]([CH2:23][O:24][CH3:25])[N:20]=[CH:19]3)[CH:12]=[C:7]12)([CH3:34])[CH3:33]

Participants

6

Reactant 3

HCID 6362Isopropyl iodideHCID 10796Cesium carbonateHCID 86711414HCID 86711414, compound

Product 1

HCID 86711416HCID 86711416, compoundYield 48%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8028TetrahydrofuranSolvent

Procedure

Example 142. To a stirred suspension of 9-hydroxy-2-(4-(methoxymethyl)-1H-imidazol-1-yl)-7,8-dihydro-[1,4]diazepino[7,1-a]isoquinolin-5(4H)-one (50 mg, 0.148 mmol) and cesium carbonate (120 mg, 0.369 mmol) in THF (1 mL) and DMF (0.35 mL), isopropyl iodide (55 mg, 0.325 mmol) was added. The mixture was stirred at rt for 17 h and poured onto H2O. The mixture was extracted with DCM and the combined org. layers were washed with brine, dried over Na2SO4, filtered and concentrated in vacuo. The crude product was purified by by SFC (column: PPU 5 μm, 250×30 mm, 60 A, Princeton; eluent: 5% MeOH/CO2 isocratic run for 20 min; flow 100 mL/min; UV detection at 220 nm). The residue was crystallized from diethyl ether and gave the title compound as white crystals (27 mg). UPLC-MS: MS 381.2 (M+H+); UPLC rt 0.98 min. 1H NMR (400 MHz, DMSO-d6) δ ppm 1.27 (d, J=6.11 Hz, 6 H), 2.80 (t, J=6.11 Hz, 2 H), 3.23 (s, 3 H), 3.82 (br. s., 2 H), 4.22 (br. s., 2 H), 4.27 (s, 2 H), 4.64 (dt, J=12.04, 6.08 Hz, 1 H), 7.14 (d, J=8.07 Hz, 1 H), 7.22 (s, 1 H), 7.31 (t, J=8.19 Hz, 1 H), 7.63 (s, 1 H), 7.66 (d, J=7.82 Hz, 1 H), 8.20 (s, 1 H).

Workup

  1. additionwas added
  2. additionpoured onto H2O
  3. extractionThe mixture was extracted with DCM
  4. washlayers were washed with brine
  5. dry with materialdried over Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated in vacuo
  8. customThe crude product was purified by by SFC (column: PPU 5 μm, 250×30 mm, 60 A, Princeton; eluent: 5% MeOH/CO2 isocratic run for 20 min; flow 100 mL/min; UV detection at 220 nm)
  9. customThe residue was crystallized from diethyl ether

Sources & evidence

ORD record
ord-e44ff640ea9745dd84e0160ecec91596
Source dataset
uspto-grants-2016_03
Patent number
US09284331B2

Reaction notes

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