Cyclopropylamine → 4-[(S)-4-Carboxy-2-({5-[2-((S)-2-cyclopropylcarbamoyl-pyrrolidin-1-yl)-2-oxo-ethoxy]-1-phenyl-1H-pyrazole-3-carbonyl}-amino)-butyryl]-piperazine-1-carboxylic acid butyl ester

HRID 1970509Notes

Reaction equation

HRID 1970509 reaction equation
[CH2:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([C:14](=[O:51])[C@@H:15]([NH:25][C:26]([C:28]2[CH:32]=[C:31]([O:33][CH2:34][C:35]([N:37]3[CH2:41][CH2:40][CH2:39][C@H:38]3[C:42](O)=[O:43])=[O:36])[N:30]([C:45]3[CH:50]=[CH:49][CH:48]=[CH:47][CH:46]=3)[N:29]=2)=[O:27])[CH2:16][CH2:17][C:18]([O:20]C(C)(C)C)=[O:19])[CH2:10][CH2:9]1)=[O:7])[CH2:2][CH2:3][CH3:4].CC[N:54]([CH:58]([CH3:60])[CH3:59])C(C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.C1(N)CC1.C([O-])(O)=O.[Na+]>CN(C=O)C>[CH2:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([C:14](=[O:51])[C@@H:15]([NH:25][C:26]([C:28]2[CH:32]=[C:31]([O:33][CH2:34][C:35]([N:37]3[CH2:41][CH2:40][CH2:39][C@H:38]3[C:42](=[O:43])[NH:54][CH:58]3[CH2:60][CH2:59]3)=[O:36])[N:30]([C:45]3[CH:50]=[CH:49][CH:48]=[CH:47][CH:46]=3)[N:29]=2)=[O:27])[CH2:16][CH2:17][C:18]([OH:20])=[O:19])[CH2:10][CH2:9]1)=[O:7])[CH2:2][CH2:3][CH3:4]

Participants

7

Reactant 5

HCID 69828CyclopropylamineHCID 81531DiisopropylethylamineHCID 516892Sodium BicarbonateHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 668550664-[(S)-4-tert-Butoxycarbonyl-2-({5-[2-((S)-2-carboxy-pyrrolidin-1-yl)-2-oxo-ethoxy]-1-phenyl-1H-pyrazole-3-carbonyl}-amino)-butyryl]-piperazine-1-carboxylic acid butyl ester

Product 1

HCID 441290594-[(S)-4-Carboxy-2-({5-[2-((S)-2-cyclopropylcarbamoyl-pyrrolidin-1-yl)-2-oxo-ethoxy]-1-phenyl-1H-pyrazole-3-carbonyl}-amino)-butyryl]-piperazine-1-carboxylic acid butyl ester

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 300 mg 4-[(S)-4-tert-butoxycarbonyl-2-({5-[2-((S)-2-carboxy-pyrrolidin-1-yl)-2-oxo-ethoxy]-1-phenyl-1H-pyrazole-3-carbonyl}-amino)-butyryl]-piperazine-1-carboxylic acid butyl ester in 5 ml DMF were added 66 μl DIPEA and 160 mg HATU. After 20 minutes 29 μl cyclopropylamine were added. After stirring for 12 h saturated NaHCO3 solution was added and the mixture loaded on a Chem Elut® cartridge, the crude product being eluted with dichloromethane. The solution was concentrated to a volume of 5 ml and stirred in the presence of 476 μl TFA. After stirring for 4 h the solvents were removed under reduced pressure and the residue purified by preparative HPLC (C18 reverse phase column, elution with a water/MeCN gradient with 0.1% TFA). The fractions containing the product were lyophilized to yield the pure product.

Workup

  1. additionwas added
  2. washthe crude product being eluted with dichloromethane
  3. concentrationThe solution was concentrated to a volume of 5 ml
  4. stirringAfter stirring for 4 h the solvents
  5. customwere removed under reduced pressure
  6. customthe residue purified by preparative HPLC (
  7. washC18 reverse phase column, elution with a water/MeCN gradient with 0.1% TFA)
  8. additionThe fractions containing the product
  9. customto yield the pure product

Sources & evidence

ORD record
ord-a71f8cfe44574a9cb0f65e023a31400a
Source dataset
uspto-grants-2013_04
Patent number
US08426420B2

Reaction notes

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