Sodium Iodide → HCID 86701258, compound

HRID 2276060Notes

Reaction equation

HRID 2276060 reaction equation
[C:1]([O:9][CH2:10][CH2:11][C@@H:12]1[C@@H:20]([O:21][C:22](=[O:26])[CH:23]([CH3:25])[CH3:24])[C@H:19]([CH3:27])[O:18][C:17](=[O:28])[C@@H:16]([NH:29][C:30](=[O:40])[C:31]2[C:36]([OH:37])=[C:35]([O:38][CH3:39])[CH:34]=[CH:33][N:32]=2)[CH2:15][O:14][C:13]1=[O:41])(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C([O-])([O-])=O.[Na+].[Na+].[Na+].[I-].[C:50]([O:55][CH2:56]Cl)(=[O:54])[CH:51]([CH3:53])[CH3:52]>CC(C)=O>[C:1]([O:9][CH2:10][CH2:11][C@@H:12]1[C@@H:20]([O:21][C:22](=[O:26])[CH:23]([CH3:25])[CH3:24])[C@H:19]([CH3:27])[O:18][C:17](=[O:28])[C@@H:16]([NH:29][C:30](=[O:40])[C:31]2[C:36]([O:37][CH2:56][O:55][C:50](=[O:54])[CH:51]([CH3:53])[CH3:52])=[C:35]([O:38][CH3:39])[CH:34]=[CH:33][N:32]=2)[CH2:15][O:14][C:13]1=[O:41])(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

6

Reactant 4

HCID 5238Sodium IodideHCID 10340Sodium CarbonateHCID 9989325CHLOROMETHYL ISOBUTYRATEHCID 86701259HCID 86701259, compound

Product 1

HCID 86701258HCID 86701258, compoundYield 76%

Reagents, catalysts & solvents 1

HCID 180AcetoneSolvent

Conditions

Temperature
50 °C

Procedure

To a mixture of 2-((3S,7R,8R,9S)-3-(3-hydroxy-4-methoxypicolinamido)-8-(isobutyryloxy)-9-methyl-2,6-dioxo-1,5-dioxonan-7-yl)ethyl benzoate (50 mg, 0.087 mmol), Na2CO3 (15 mg, 0.14 mmol) and NaI (3.09 mg, 0.021 mmol) in acetone (0.6 mL) was added chloromethyl isobutyrate (15.4 mg, 0.114 mmol) slowly at room temperature (about 22° C.). The resulting reaction mixture was warmed to 50° C. and stirred at 50° C. overnight. The solvent was evaporated and the crude residue was purified via flash chromatography (SiO2, hexanes/EtOAc gradient) to afford the title compound (35 mg, 76%) as an off-white solid: mp 48-50° C.; 1H NMR (300 MHz, CDCl3) δ 8.55 (d, J=7.9 Hz, 1H), 8.26 (d, J=5.5 Hz, 1H), 8.04-7.87 (m, 2H), 7.55 (t, J=7.4 Hz, 1H), 7.43 (t, J=7.5 Hz, 2H), 6.95 (d, J=5.4 Hz, 1H), 5.85-5.62 (m, 2H), 5.41 (s, 1H), 5.26-5.06 (m, 2H), 4.94 (dd, J=9.8, 6.3 Hz, 1H), 4.42-4.19 (m, 2H), 3.92 (d, J=14.3 Hz, 3H), 3.65 (s, 1H), 2.76 (t, J=9.5 Hz, 1H), 2.62 (dt, J=10.8, 5.5 Hz, 1H), 2.58-2.47 (m, 1H), 2.30 (s, 1H), 1.82 (s, 1H), 1.29 (d, J=6.3 Hz, 3H), 1.21 (dd, J=7.0, 0.9 Hz, 6H), 1.13 (d, J=7.0 Hz, 6H); ESIMS m/z 673 ([M+H]+).

Workup

  1. customThe resulting reaction mixture
  2. customThe solvent was evaporated
  3. customthe crude residue was purified via flash chromatography (SiO2, hexanes/EtOAc gradient)

Sources & evidence

ORD record
ord-a997916d491a4d12b124e55fbef2cc87
Source dataset
uspto-grants-2015_09
Patent number
US09131690B2

Reaction notes

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