Anisole → HCID 58452910, compound

HRID 70657Notes

Reaction equation

C1(OC)C=CC=CC=1.[C:9]([C:13]1[CH:18]=[CH:17][C:16](/[C:19](/[C:38]2[NH:43][C:42](=[O:44])[C:41]([CH2:45][CH3:46])=[CH:40][CH:39]=2)=[CH:20]\[C@H:21]2[CH2:25][CH2:24][C:23](=[O:26])[N:22]2CC2C=CC(OC)=CC=2OC)=[CH:15][CH:14]=1)([CH3:12])([CH3:11])[CH3:10]>FC(F)(F)C(O)=O>[C:9]([C:13]1[CH:14]=[CH:15][C:16](/[C:19](/[C:38]2[NH:43][C:42](=[O:44])[C:41]([CH2:45][CH3:46])=[CH:40][CH:39]=2)=[CH:20]\[C@H:21]2[CH2:25][CH2:24][C:23](=[O:26])[NH:22]2)=[CH:17][CH:18]=1)([CH3:12])([CH3:11])[CH3:10]

Participants

Conditions

Temperature: 65 °C

Procedure

Anisole (0.25 mL) was added to a solution of 6-{(E)-1-(4-tert-butylphenyl)-2-[(2R)-1-(2,4-dimethoxybenzyl)-5-oxopyrrolidin-2-yl]ethenyl}-3-ethylpyridin-2(1H)-one (49 mg) in trifluoroacetic acid (0.5 mL), and the mixture was stirred at 65° C. for seven hours. Trifluoroacetic acid (0.5 mL) was added and the mixture was stirred for further five hours, after which the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (chloroform:methanol=1:0→9:1). The resulting crystals (25 mg) were recrystallized from ethyl acetate-hexane to give the title compound as a colorless powder (20 mg).

Workup

stirringthe mixture was stirred for further five hours
customafter which the solvent was evaporated under reduced pressure
customThe residue was purified by silica gel column chromatography (chloroform:methanol=1:0→9:1)
customThe resulting crystals (25 mg) were recrystallized from ethyl acetate-hexane

Sources & evidence

ORD record: ord-f7673b04946f4042af1f379061569d09
Source dataset: uspto-grants-2014_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08822503B2

Reaction notes

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