Sodium Hydroxide → 2-(N-(4-(6,8-dichloro-2-methyl-1,2,3,4-tetrahydroisoquinolin-4-yl)phenyl)sulfamoylamino)ethylphosphonic acid

HRID 1470111Notes

Reaction equation

HRID 1470111 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][S:21]([NH:24][CH2:25][CH2:26][P:27](=[O:34])([O:31]CC)[O:28]CC)(=[O:23])=[O:22])=[CH:16][CH:15]=1.Br[Si](C)(C)C.[OH-].[Na+]>ClCCl.CO>[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][S:21]([NH:24][CH2:25][CH2:26][P:27](=[O:28])([OH:31])[OH:34])(=[O:23])=[O:22])=[CH:16][CH:15]=1

Participants

6

Reactant 3

HCID 14798Sodium HydroxideHCID 76113BromotrimethylsilaneHCID 86672336diethyl 2-(N-(4-(6,8-dichloro-2-methyl-1,2,3,4-tetrahydroisoquinolin-4-yl)phenyl)sulfamoylamino)ethylphosphonate

Product 1

HCID 674601292-(N-(4-(6,8-dichloro-2-methyl-1,2,3,4-tetrahydroisoquinolin-4-yl)phenyl)sulfamoylamino)ethylphosphonic acid

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 6344DichloromethaneSolvent

Conditions

Temperature
39 °C

Procedure

Into a 50-mL round-bottom flask purged and maintained with an inert atmosphere of nitrogen, was placed a solution of diethyl 2-(N-(4-(6,8-dichloro-2-methyl-1,2,3,4-tetrahydroisoquinolin-4-yl)phenyl)sulfamoylamino)ethylphosphonate (100 mg, 0.18 mmol, 1.00 equiv) in dichloromethane (5 mL) and bromotrimethylsilane (275 mg, 1.80 mmol, 9.89 equiv). The resulting solution was stirred overnight at 39° C. The resulting mixture was concentrated under vacuum and the residue was dissolved in dichloromethane (5 mL). This was followed by the addition of a solution of sodium hydroxide (14.5 mg, 0.36 mmol, 2.00 equiv) in methanol (0.2 mL) dropwise with stirring. The solids were collected by filtration and dried under reduced pressure. This gave 40 mg (40%) of a sodium salt of the title compound as a white solid. 1H-NMR (300 MHz, d6-DMSO, ppm): δ 9.78 (1H, brs), 7.54 (1H, s), 7.47 (1H, brs), 7.09-7.17 (4H, m), 6.82 (1H, s), 4.31 (1H, brs), 3.88 (2H, brs), 3.13 (1H, brs), 3.04 (2H, brs), 2.90 (1H, brs), 2.58 (3H, s), 1.65-1.77 (2H, m). MS (m/z): 494 [M+H]+.

Workup

  1. customInto a 50-mL round-bottom flask purged
  2. temperaturemaintained with an inert atmosphere of nitrogen
  3. concentrationThe resulting mixture was concentrated under vacuum
  4. dissolutionthe residue was dissolved in dichloromethane (5 mL)
  5. stirringwith stirring
  6. filtrationThe solids were collected by filtration
  7. customdried under reduced pressure

Sources & evidence

ORD record
ord-36a1117abf77425fb910ae32959bf334
Source dataset
uspto-grants-2015_04
Patent number
US09006281B2

Reaction notes

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