Sodium Hydroxide → 7-{[2-(3,5-Dichloro-phenoxy)-ethyl]-methanesulfonyl-amino}-heptanoic acid
Reaction equation
C([O:3][C:4](=[O:27])[CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][N:11]([CH2:16][CH2:17][O:18][C:19]1[CH:24]=[C:23]([Cl:25])[CH:22]=[C:21]([Cl:26])[CH:20]=1)[S:12]([CH3:15])(=[O:14])=[O:13])C.[OH-].[Na+]>>[Cl:26][C:21]1[CH:20]=[C:19]([CH:24]=[C:23]([Cl:25])[CH:22]=1)[O:18][CH2:17][CH2:16][N:11]([S:12]([CH3:15])(=[O:13])=[O:14])[CH2:10][CH2:9][CH2:8][CH2:7][CH2:6][CH2:5][C:4]([OH:27])=[O:3]Participants
3
Procedure
The title compound was prepared from 7-{[2-(3,5-dichloro-phenoxy)-ethyl]-methanesulfonyl-amino}-heptanoic acid ethyl ester using the procedure described in Step B of Example 1 with 2N NaOH. Purification by flash chromatography (1% MeOH in CH2Cl2) provided the title acid. 1HNMR (400 MHz, CDCl3) δ 6.95 (m, 1H), 6.75 (m, 2H), 4.07 (t, 2H), 3.56 (t, 2H), 3.23 (t, 2H), 2.86 (s, 3H), 2.33 (t, 2H), 1.61 (m, 4H), 1.33 (m, 4H); MS 411 (M−1).
Workup
- customPurification by flash chromatography (1% MeOH in CH2Cl2)
- customprovided the title acid
Sources & evidence
- ORD record
- ord-bc4e8d5231074906adf83c52908f2c1c
- Source dataset
- uspto-grants-2006_02
- Patent number
- US06998423B2
Reaction notes
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