1,1,3,3-Tetramethylguanidine → (Z)-2-[[2-chloro-4-[[(3-hydroxybenzyl)amino]carbonyl]-6-methylbenzoyl]amino]-3-[1-(1,1-dimethylethoxycarbonyl)-1H-benzotriazol-5-yl]propenoic acid methyl ester

HRID 1058421Notes

Reaction equation

HRID 1058421 reaction equation
CN(C)C(N(C)C)=N.[CH3:9][O:10][C:11](=[O:41])[CH:12](P(OC)(OC)=O)[NH:13][C:14](=[O:34])[C:15]1[C:20]([CH3:21])=[CH:19][C:18]([C:22]([NH:24][CH2:25][C:26]2[CH:31]=[CH:30][CH:29]=[C:28]([OH:32])[CH:27]=2)=[O:23])=[CH:17][C:16]=1[Cl:33].[CH3:42][C:43]([CH3:59])([O:45][C:46]([N:48]1[C:52]2[CH:53]=[CH:54][C:55]([CH:57]=O)=[CH:56][C:51]=2[N:50]=[N:49]1)=[O:47])[CH3:44]>O1CCCC1>[CH3:9][O:10][C:11](=[O:41])/[C:12](/[NH:13][C:14](=[O:34])[C:15]1[C:20]([CH3:21])=[CH:19][C:18]([C:22]([NH:24][CH2:25][C:26]2[CH:31]=[CH:30][CH:29]=[C:28]([OH:32])[CH:27]=2)=[O:23])=[CH:17][C:16]=1[Cl:33])=[CH:57]/[C:55]1[CH:54]=[CH:53][C:52]2[N:48]([C:46]([O:45][C:43]([CH3:42])([CH3:59])[CH3:44])=[O:47])[N:49]=[N:50][C:51]=2[CH:56]=1

Participants

5

Reactant 3

HCID 664601,1,3,3-TetramethylguanidineHCID 11637374tert-Butyl 5-formyl-1H-benzo[d][1,2,3]triazole-1-carboxylateHCID 23560749Rac.-n-[2-chloro-4-[[(3-hydroxybenzyl)amino]carbonyl]-6-methylbenzoyl]-2-(dimethoxyphosphinyl)glycine methyl ester

Product 1

HCID 70027820(Z)-2-[[2-chloro-4-[[(3-hydroxybenzyl)amino]carbonyl]-6-methylbenzoyl]amino]-3-[1-(1,1-dimethylethoxycarbonyl)-1H-benzotriazol-5-yl]propenoic acid methyl esterYield 88%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

1,1,3,3-Tetramethylguanidine (60 μL, 0.48 mmol) was added to a solution of rac.-N-[2-chloro-4-[[(3-hydroxybenzyl)amino]carbonyl]-6-methylbenzoyl]-2-(dimethoxyphosphinyl)glycine methyl ester (Example 132; 109 mg, 0.22 mmol) in tetrahydrofuran (3 mL) at room temperature. 1-(1,1-dimethylethoxycarbonyl)-1H-benzotriazole-5-carboxaldehyde (Example 40; 55 mg, 0.22 mmol) was added and the solution was stirred at room temperature for 42 h. After the solvents were removed under reduced pressure, the residue was partitioned between ethyl acetate (10 mL) and pH 6 phosphate buffer (5 mL). The organic phase was washed with pH 6 phosphate buffer, brine, 10% aqueous sodium bicarbonate solution and brine. Each of the aqueous layers was extracted in turn with ethyl acetate. The combined organic layers were dried (Na2SO4), filtered and evaporated to give crude (Z)-2-[[2-chloro-4-[[(3-hydroxybenzyl)amino]carbonyl]-6-methylbenzoyl]amino]-3-[1-(1,1-dimethylethoxycarbonyl)-1H-benzotriazol-5-yl]propenoic acid methyl ester (120 mg) which was used directly in the next step.

Workup

  1. customAfter the solvents were removed under reduced pressure
  2. customthe residue was partitioned between ethyl acetate (10 mL) and pH 6 phosphate buffer (5 mL)
  3. washThe organic phase was washed with pH 6 phosphate buffer, brine, 10% aqueous sodium bicarbonate solution and brine
  4. extractionEach of the aqueous layers was extracted in turn with ethyl acetate
  5. dry with materialThe combined organic layers were dried (Na2SO4)
  6. filtrationfiltered
  7. customevaporated

Sources & evidence

ORD record
ord-fe192756bfc84784af3927818578d554
Source dataset
uspto-grants-2003_02
Patent number
US06515124B2

Reaction notes

Loading…