4-Hydroxymethylpyridine → 3-[(4-Methoxyphenyl)amino]-4-phenyl-1-(pyridin-4-ylmethyl)-1H-pyrrole-2,5-dione

HRID 2113763Notes

Reaction equation

[CH3:1][O:2][C:3]1[CH:8]=[CH:7][C:6]([NH:9][C:10]2[C:11](=[O:22])[NH:12][C:13](=[O:21])[C:14]=2[C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)=[CH:5][CH:4]=1.O[CH2:24][C:25]1[CH:30]=[CH:29][N:28]=[CH:27][CH:26]=1.N(C(OCC)=O)=NC(OCC)=O.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>C1COCC1>[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]([NH:9][C:10]2[C:11](=[O:22])[N:12]([CH2:24][C:25]3[CH:30]=[CH:29][N:28]=[CH:27][CH:26]=3)[C:13](=[O:21])[C:14]=2[C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)=[CH:7][CH:8]=1

Participants

Conditions

Temperature: 120 °C

Procedure

A mixture of 3-[(4-methoxyphenyl)amino]-4-phenyl-1H-pyrrole-2,5-dione (0.50 mmol, 147 mg), 4-hydroxymethylpyridine (0.75 mmol, 82 mg), diethyl azodicarboxylate (0.75 mmol, 131 mg) and triphenylphosphine (0.75 mmol, 197 mg) in dry THF (2 mL) was heated in a microwave reactor at 120° C. for five min. After cooling, the reaction mixture was purified by HPLC (95% 0.1M ammonium acetate buffer: 5% CH3CN→100% CH3CN) to give 56 mg (29%) of the title compound. 1H NMR (400 MHz, CDCl3) δ 8.59 (bs, 2H), 7.35-7.29 (m, br, 2H), 7.25 (s, br, 1H), 7.17-7.06 (m, 3H), 7.01-6.96 (m, 2H), 6.63-6.53 (m, 4H), 4.77 (s, 2H), 3.70 (s, 3H).

Workup

temperatureAfter cooling
customthe reaction mixture was purified by HPLC (95% 0.1M ammonium acetate buffer: 5% CH3CN→100% CH3CN)

Sources & evidence

ORD record: ord-53362ab083c14835b1adbfcfe1c64d2c
Source dataset: uspto-grants-2008_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07432288B2

Reaction notes

Loading…