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Diethyl (aminomethyl)phosphonate → Diethyl (3-(4-(6,8-dichloro-2-methyl-1,2,3,4-tetrahydroisoquinolin-4-yl)phenyl)ureido)methylphosphonate

HRID 1470121
Notes
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Reaction equation

HRID 1470121 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:32])OC2C=CC([N+]([O-])=O)=CC=2)=[CH:16][CH:15]=1.[NH2:33][CH2:34][P:35](=[O:42])([O:39][CH2:40][CH3:41])[O:36][CH2:37][CH3:38]>CN(C)C=O.C(N(CC)CC)C>[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:15]=[CH:16][C:17]([NH:20][C:21](=[O:32])[NH:33][CH2:34][P:35](=[O:42])([O:39][CH2:40][CH3:41])[O:36][CH2:37][CH3:38])=[CH:18][CH:19]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 2

HCID 1596920Diethyl (aminomethyl)phosphonateHCID 674588354-Nitrophenyl 4-(6,8-dichloro-2-methyl-1,2,3,4-tetrahydroisoquinolin-4-yl)phenylcarbamate

Product 1

HCID 86672337Diethyl (3-(4-(6,8-dichloro-2-methyl-1,2,3,4-tetrahydroisoquinolin-4-yl)phenyl)ureido)methylphosphonate

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolvent2×
HCID 8471
Triethylamine
Solvent

Procedure

Into a 50-mL round-bottom flask purged and maintained with an inert atmosphere of nitrogen, was placed a solution of 4-nitrophenyl 4-(6,8-dichloro-2-methyl-1,2,3,4-tetrahydroisoquinolin-4-yl)phenylcarbamate (200 mg, 0.42 mmol, 1.00 equiv) in N,N-dimethylformamide (6 mL), a solution of diethyl aminomethylphosphonate (144 mg, 0.63 mmol, 1.50 equiv) in N,N-dimethylformamide (1 mL) and triethylamine (64 mg). The resulting solution was stirred overnight at room temperature. The reaction was then quenched by the addition of 10 mL of water. The resulting solution was extracted with 3×10 mL of ethyl acetate and the organic layers combined and dried over anhydrous sodium sulfate and concentrated under vacuum. This resulted in 40 mg (17%) of diethyl (3-(4-(6,8-dichloro-2-methyl-1,2,3,4-tetrahydroisoquinolin-4-yl)phenyl)ureido)methylphosphonate as a solid.

Workup

  1. customInto a 50-mL round-bottom flask purged
  2. temperaturemaintained with an inert atmosphere of nitrogen
  3. customThe reaction was then quenched by the addition of 10 mL of water
  4. extractionThe resulting solution was extracted with 3×10 mL of ethyl acetate
  5. dry with materialdried over anhydrous sodium sulfate
  6. concentrationconcentrated under vacuum
  7. customThis resulted in 40 mg (17%) of diethyl (3-(4-(6,8-dichloro-2-methyl-1,2,3,4-tetrahydroisoquinolin-4-yl)phenyl)ureido)methylphosphonate as a solid

Sources & evidence

ORD record
ord-c7886acd4d7c40239a1a4755f10af577
Source dataset
uspto-grants-2015_04
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09006281B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes