C(N)C.[CH3:4][O:5][C:6]1[CH:7]=[C:8]2[C:13](=[CH:14][CH:15]=1)[CH:12]=[C:11]([CH:16]([CH3:20])[C:17]([OH:19])=[O:18])[CH:10]=[CH:9]2.Cl>O>[CH3:4][O:5][C:6]1[CH:7]=[C:8]2[C:13](=[CH:14][CH:15]=1)[CH:12]=[C:11]([CH:16]([CH3:20])[C:17]([OH:19])=[O:18])[CH:10]=[CH:9]2220 g of (+)-2-(6-methoxy-2-naphthyl) propionic acid ethylamine salt was dissolved in 1350 ml of water at 70° C. The obtained completely clear solution was slowly acidified to about pH=5 with 10% w/w hydrochloric acid.
Wird geladen…