Hydrochloric Acid → ethyl 8-chloro-4-hydroxy-2-oxo-2',3',5',6'-tetrahydro-4H-spiro[naphthalene-1,4'-pyran]-3-carboxylate
Reaction equation
[CH3:27][CH2:28][O-:29].[CH3:32][CH2:33][OH:34].[CH3:35][CH2:36][O:37][C:38]([CH3:39])=[O:40].[Cl:1][c:2]1[c:3]([C:16]2([C:22](=[O:23])[O:24][CH2:25][CH3:26])[CH2:17][CH2:18][O:19][CH2:20][CH2:21]2)[c:4]([C:8](=[CH:9][C:10](=[O:11])[O:12][CH2:13][CH3:14])[OH:15])[cH:5][cH:6][cH:7]1.[ClH:31].[Na+:30]>>[Cl:1][c:2]1[c:3]2[c:4]([cH:5][cH:6][cH:7]1)[CH:8]([OH:15])[CH:9]([C:10](=[O:11])[O:12][CH2:13][CH3:14])[C:22](=[O:23])[C:16]21[CH2:17][CH2:18][O:19][CH2:20][CH2:21]1
