Water → HCID 68314830, compound

HRID 1618952Notes

Reaction equation

HRID 1618952 reaction equation
[CH3:1][O:2][C:3]1[CH:33]=[CH:32][C:6]([CH2:7][N:8]2[C:13](=[O:14])[CH:12](C(OC)=O)[C:11](=[O:19])[C:10]3([CH2:24][CH2:23][N:22]([C:25]([O:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[O:26])[CH2:21][CH2:20]3)[CH2:9]2)=[CH:5][CH:4]=1.O>C(#N)C>[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]([CH2:7][N:8]2[C:13](=[O:14])[CH2:12][C:11](=[O:19])[C:10]3([CH2:24][CH2:23][N:22]([C:25]([O:27][C:28]([CH3:29])([CH3:31])[CH3:30])=[O:26])[CH2:21][CH2:20]3)[CH2:9]2)=[CH:32][CH:33]=1

Participants

4

Procedure

Crude product A3 was dissolved in acetonitrile (50 mL) and water (50 mL) and stirred for 4 h at 80° C. The acetonitrile was evaporated off and the solids were filtered off, washed with water and taken up in DCM. The organic phase was dried over Na2SO4 and concentrated in vacuo. The product A4 (1.57 g) was obtained as a white solid. Overall yields (A2 to A4) are 70%. 1H NMR (400 MHz, CDCl3, 300K): 6=1.23 (2H, m), 1.41 (9H, s), 1.76 (2H, m), 3.13 (2H, m), 3.26 (2H, s), 3.37 (2H, m), 3.39 (2H, s), 3.81 (3H, s), 4.58 (2H, s), 6.87 (2H, d, J=8.6 Hz), 7.22 (d, J=8.6 Hz). 13C NMR (100 MHz, CDCl3, 300K): δ=28.8, 30.0, 46.3, 47.1, 49.8, 51.7, 55.7, 80.2, 114.6, 128.4, 130.5, 154.9, 159.8, 166.4, 206.8. MS (ES) C22H30N2O5 requires: 402. found: 425.2 [M+Na]+.

Workup

  1. customThe acetonitrile was evaporated off
  2. filtrationthe solids were filtered off
  3. washwashed with water
  4. dry with materialThe organic phase was dried over Na2SO4
  5. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-34483b69b0a244818ce6f365807a5fba
Source dataset
uspto-grants-2014_07
Patent number
US08772286B2

Reaction notes

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