1-Hydroxybenzotriazole → HCID 68539291, compound

HRID 2223586Notes

Reaction equation

HRID 2223586 reaction equation
C([O:4][C@@H:5]1[C@@H:10]([O:11]C(=O)C)[C@H:9]([O:15]C(=O)C)[C@@H:8]([CH2:19][O:20]C(=O)C)[O:7][C@H:6]1[O:24][C:25]1[C:29]([CH2:30][C:31]2[CH:36]=[CH:35][C:34](/[CH:37]=[CH:38]/[CH2:39][C:40]([OH:42])=O)=[CH:33][CH:32]=2)=[C:28]([CH:43]([CH3:45])[CH3:44])[NH:27][N:26]=1)(=O)C.Cl.[NH2:47][CH2:48][C:49]([NH2:51])=[O:50].ON1C2C=CC=CC=2N=N1.Cl.C(N=C=NCCCN(C)C)C>CN(C)C=O.C(N(CC)CC)C>[C:49]([CH2:48][NH:47][C:40]([CH2:39]/[CH:38]=[CH:37]/[C:34]1[CH:35]=[CH:36][C:31]([CH2:30][C:29]2[C:25]([O:24][C@@H:6]3[O:7][C@H:8]([CH2:19][OH:20])[C@@H:9]([OH:15])[C@H:10]([OH:11])[C@H:5]3[OH:4])=[N:26][NH:27][C:28]=2[CH:43]([CH3:44])[CH3:45])=[CH:32][CH:33]=1)=[O:42])(=[O:50])[NH2:51]

Participants

7

Reactant 4

HCID 757711-HydroxybenzotriazoleHCID 2723639Glycinamide hydrochlorideHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 685375513-(2,3,4,6-Tetra-O-acetyl-beta-D-glucopyranosyloxy)-4-({4-[(1E)-3-carboxyprop-1-enyl]phenyl}methyl)-5-isopropyl-1H-pyrazole

Product 1

HCID 68539291HCID 68539291, compoundYield 10.7%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8471TriethylamineSolvent

Procedure

To a solution of 3-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyloxy)-4-({4-[(1E)-3-carboxyprop-1-enyl]phenyl}methyl)-5-isopropyl-1H-pyrazole (0.34 g) in N,N-dimethylformamide (1 mL) were added glycinamide hydrochloride (0.12 g), 1-hydroxybenzotriazole (0.09 g), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (0.15 g) and triethylamine (0.27 g), and the mixture was stirred at room temperature overnight. The insoluble material was removed by filtration. To the filtrate was added 5 mol/L aqueous sodium hydroxide solution (0.5 mL), and the mixture was stirred at room temperature for 1 hour. The insoluble material was removed by filtration, and the filtrate was purified by preparative reverse phase column chromatography (Shiseido CAPCELL PAK UG120 ODS, 5 μm, 120 Å, 20×50 mm, flow rate 30 mL/minute linear gradient, water/acetonitrile=90/10-10/90) to give 4-({4-[(1E)-3-(carbamoylmethylcarbamoyl)prop-1-enyl]phenyl}methyl)-3-(β-D-glucopyranosyloxy)-5-isopropyl-1H-pyrazole (0.03 g). This material was dissolved in methanol (1 mL). To the solution was added 10% palladium-carbon powder (0.01 g), and the mixture was stirred at room temperature under a hydrogen atmosphere for 3 hours. The insoluble material was removed by filtration, and the solvent of the filtrate was removed under reduced pressure to give the title compound (0.02 g).

Workup

  1. customThe insoluble material was removed by filtration
  2. additionTo the filtrate was added 5 mol/L aqueous sodium hydroxide solution (0.5 mL)
  3. stirringthe mixture was stirred at room temperature for 1 hour
  4. customThe insoluble material was removed by filtration
  5. customthe filtrate was purified by preparative reverse phase column chromatography (Shiseido CAPCELL PAK UG120 ODS, 5 μm, 120 Å, 20×50 mm, flow rate 30 mL/minute linear gradient, water/acetonitrile=90/10-10/90)

Sources & evidence

ORD record
ord-b6a8b661766a4d7ca90fc2efb96c37ac
Source dataset
uspto-grants-2008_05
Patent number
US07375087B2

Reaction notes

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