Hydrochloric Acid → HCID 86614040, compound
Reaction equation
[Cl:1][C:2]1[C:11]2[N:10]([CH3:12])[O:9][C@H:8]3[NH:13][C@H:14]([C:16]([O:18][C@@H:19]4[C@:28]5([OH:29])[C@@H:23]([C@H:24]([CH:31]([CH3:33])[CH3:32])[CH2:25][CH2:26][C@H:27]5[CH3:30])[CH:22]=[C:21]([CH3:34])[C@H:20]4[O:35]C(=O)C)=[O:17])[CH2:15][C@@:7]3([OH:39])[C:6]=2[CH:5]=[CH:4][CH:3]=1.Cl>CO.ClCCl>[Cl:1][C:2]1[C:11]2[N:10]([CH3:12])[O:9][C@H:8]3[NH:13][C@H:14]([C:16]([O:18][C@@H:19]4[C@:28]5([OH:29])[C@@H:23]([C@H:24]([CH:31]([CH3:32])[CH3:33])[CH2:25][CH2:26][CH:27]5[CH3:30])[CH:22]=[C:21]([CH3:34])[CH:20]4[OH:35])=[O:17])[CH2:15][C@@:7]3([OH:39])[C:6]=2[CH:5]=[CH:4][CH:3]=1Participants
Reactant 2
Product 1
Reagents, catalysts & solvents 2
Procedure
To a stirred suspension of (1S,2R,4aS,5S,8R,8aR)-2-(acetyloxy)-8a-hydroxy-5-isopropyl-3,8-dimethyl-1,2,4a,5,6,7,8,8a-octahydro-1-naphthalenyl-(2S,3aR,9bR)-6-chloro-9b-hydroxy-5-methyl-1,2,3,3a,5,9b-hexahydropyrrolo[2,3-c][2,1]benzoxazine-2-carboxylate (Example 1, 887 mg) in methanol (25 ml) was added a solution of concentrated hydrochloric acid (1 ml) in methanol (25 ml). After 4 days the reaction mixture was diluted with dichloromethane (150 ml) and washed with water (3×100 ml). The combined aqueous layers were washed with dichloromethane (25 ml). All the organic phases were combined, dried and concentrated to yield a yellow solid (802 mg). Purification was achieved by flash column chromatography on silica gel eluting with 1:1 ethyl acetate:hexane to give the product (604 mg).
Workup
- washwashed with water (3×100 ml)
- washThe combined aqueous layers were washed with dichloromethane (25 ml)
- customdried
- concentrationconcentrated
Sources & evidence
- ORD record
- ord-5e84e4ff22c145ee8315d86fc078dba8
- Source dataset
- uspto-grants-2009_02
- Patent number
- US07494992B2
Reaction notes
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