Sodium Hydroxide → (2S)-2-(3-(4-(6,8-dichloro-2-methyl-1,2,3,4-tetrahydroisoquinolin-4-yl)phenyl)ureido)succinic acid

HRID 1479383Notes

Reaction equation

HRID 1479383 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]2[C:9](=[C:10]([Cl:12])[CH:11]=1)[CH2:8][N:7]([CH3:13])[CH2:6][CH:5]2[C:14]1[CH:19]=[CH:18][C:17]([NH:20][C:21](=[O:33])[NH:22][C@@H:23]([CH2:28][C:29]([O:31]C)=[O:30])[C:24]([O:26]C)=[O:25])=[CH:16][CH:15]=1.[OH-].[Na+]>CO.O>[Cl:1][C:2]1[CH:3]=[C:4]2[C:9](=[C:10]([Cl:12])[CH:11]=1)[CH2:8][N:7]([CH3:13])[CH2:6][CH:5]2[C:14]1[CH:19]=[CH:18][C:17]([NH:20][C:21](=[O:33])[NH:22][C@@H:23]([CH2:28][C:29]([OH:31])=[O:30])[C:24]([OH:26])=[O:25])=[CH:16][CH:15]=1

Participants

5

Reactant 2

HCID 14798Sodium HydroxideHCID 46843171(2S)-dimethyl 2-(3-(4-(6,8-dichloro-2-methyl-1,2,3,4-tetrahydroisoquinolin-4-yl)phenyl)ureido)succinate

Product 1

HCID 67457709(2S)-2-(3-(4-(6,8-dichloro-2-methyl-1,2,3,4-tetrahydroisoquinolin-4-yl)phenyl)ureido)succinic acid

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 962WaterSolvent

Procedure

Into a 50-mL round-bottom flask, was placed a solution of (2S)-dimethyl 2-(3-(4-(6,8-dichloro-2-methyl-1,2,3,4-tetrahydroisoquinolin-4-yl)phenyl)ureido)succinate (100 mg, 0.20 mmol, 1.00 equiv) in methanol (5 mL), water (1 mL), sodium hydroxide (30 mg, 0.75 mmol, 3.71 equiv). The resulting solution was stirred for 3 h at room temperature and then concentrated under vacuum. The pH of the solution was adjusted to 3-4 with 1N hydrochloric acid. The solids were collected by filtration and the residue was lyophilized. This resulted in 16 mg (16%) of (2S)-2-(3-(4-(6,8-dichloro-2-methyl-1,2,3,4-tetrahydroisoquinolin-4-yl)phenyl)ureido)succinic acid as a white solid. 1H-NMR (300 MHz, DMSO, ppm): δ 8.98 (s, 1H), 7.66 (s, 1H), 7.38-7.44 (d, J=17.1 Hz, 2H), 7.12-7.15 (d, J=8.4 Hz, 2H), 6.78 (s, 1H), 6.60-6.63 (s, 1H), 4.48-4.54 (m, 4H), 3.63-3.66 (s, 2H), 3.01 (s, 1H), 2.51-2.84 (m, 2H). MS (ES, m/z): 466 [M+H]+.

Workup

  1. customInto a 50-mL round-bottom flask, was placed
  2. concentrationconcentrated under vacuum
  3. filtrationThe solids were collected by filtration
  4. customThis resulted in 16 mg (16%) of (2S)-2-(3-(4-(6,8-dichloro-2-methyl-1,2,3,4-tetrahydroisoquinolin-4-yl)phenyl)ureido)succinic acid as a white solid

Sources & evidence

ORD record
ord-7fc1f554a210497885e88fb9bccc10d5
Source dataset
uspto-grants-2016_08
Patent number
US09408840B2

Reaction notes

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