3-Aminobenzenesulfonic acid → 3-[(4S)-4-amino-5-methoxy-5-oxopentanamido]benzene-1-sulfonic acid

HRID 330870Notes

Reaction equation

HRID 330870 reaction equation
CC(OC([NH:8][C@H:9]([C:15]([O:17][CH3:18])=[O:16])[CH2:10][CH2:11][C:12]([OH:14])=O)=O)(C)C.F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2N=CC=CC=2N=N1.C1C=NC2N(O)N=NC=2C=1.[NH2:53][C:54]1[CH:55]=[C:56]([S:60]([OH:63])(=[O:62])=[O:61])[CH:57]=[CH:58][CH:59]=1>C(Cl)Cl.FC(F)(F)C(O)=O.C(N(CC)CC)C>[NH2:8][C@H:9]([C:15]([O:17][CH3:18])=[O:16])[CH2:10][CH2:11][C:12]([NH:53][C:54]1[CH:55]=[C:56]([S:60]([OH:63])(=[O:61])=[O:62])[CH:57]=[CH:58][CH:59]=1)=[O:14]

Participants

8

Reactant 4

HCID 84743-Aminobenzenesulfonic acidHCID 181649HOAtHCID 7018754(4S)-4-(((tert-butoxy)carbonyl)amino)-5-methoxy-5-oxopentanoic acidHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)

Product 1

HCID 533792923-[(4S)-4-amino-5-methoxy-5-oxopentanamido]benzene-1-sulfonic acid

Reagents, catalysts & solvents 3

HCID 6344DichloromethaneSolventHCID 6422Trifluoroacetic acidSolventHCID 8471TriethylamineSolvent

Procedure

Boc-Glu-OME, 130 mg (0.5 mmol), 190 mg (0.5 mmol) of 2-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (HATU), 70 mg (0.5 mmol) of 7-aza-1-hydroxybenzotriazole (HOAt) and 87 mg (0.5 mmol) of 3-aminobenzenesulfonic acid were suspended in 2.0 ml of methylene chloride, and 0.5 ml of triethylamine was added to the suspension. The mixture was stirred at room temperature overnight. After the solvent was removed by distillation, the purification step A was applied to give the intermediate. The crude product was dissolved in 4.0 ml of trifluoroacetic acid (TFA) and stirred at room temperature for an hour. After the solvent was removed by distillation, the purification step A was applied to give 7.4 mg of the title compound.

Workup

  1. customAfter the solvent was removed by distillation
  2. customthe purification step A
  3. customto give the intermediate
  4. stirringstirred at room temperature for an hour
  5. customAfter the solvent was removed by distillation
  6. customthe purification step A

Sources & evidence

ORD record
ord-db182332e4ce4210a912e5dd18932d79
Source dataset
uspto-grants-2014_11
Patent number
US08877739B2

Reaction notes

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