1-Hydroxybenzotriazole → HCID 58237094, compound

HRID 1189050Notes

Reaction equation

HRID 1189050 reaction equation
Cl.CN.[CH3:4][O:5][C:6]1[CH:7]=[C:8]([O:24][C:25]2[CH:30]=[CH:29][C:28]([S:31]([CH3:34])(=[O:33])=[O:32])=[CH:27][CH:26]=2)[CH:9]=[C:10]2[C:14]=1[NH:13][C:12]([C:15]1[S:16][CH:17]([CH2:20][C:21](O)=[O:22])[CH2:18][N:19]=1)=[CH:11]2.O[N:36]1[C:40]2C=CC=CC=2N=N1.Cl.C(N=C=NCCCN(C)C)C>CN(C)C=O.C(N(CC)CC)C>[CH3:4][O:5][C:6]1[CH:7]=[C:8]([O:24][C:25]2[CH:30]=[CH:29][C:28]([S:31]([CH3:34])(=[O:32])=[O:33])=[CH:27][CH:26]=2)[CH:9]=[C:10]2[C:14]=1[NH:13][C:12]([C:15]1[S:16][CH:17]([CH2:20][C:21]([NH:36][CH3:40])=[O:22])[CH2:18][N:19]=1)=[CH:11]2

Participants

7

Reactant 4

HCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 6364545Methylamine hydrochlorideHCID 58237013HCID 58237013, compound

Product 1

HCID 58237094HCID 58237094, compoundYield 88%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8471TriethylamineSolvent

Procedure

To an ice-cooled and stirred mixture of methylamine hydrochloride (48 mg) and triethylamine (0.10 mL) in N,N-dimethylformamide (10 mL) were added (2-{7-methoxy-5-[4-(methylsulfonyl)phenoxy]-1H-indol-2-yl}-4,5-dihydro-1,3-thiazol-5-yl)acetic acid (0.16 g), 1-hydroxybenzotriazole (94 mg) and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (134 mg). After stirring at 4° C. to room temperature for 7 h, the reaction mixture was partitioned between ethyl acetate and water. The organic layer was washed successively with aqueous sodium hydrogen carbonate solution and brine, dried (MgSO4), filtered, and concentrated to give a pale yellow oil, which was purified by silica gel chromatography (ethyl acetate:methanol=100:0 to 90:10, volume ratio) to give a colorless oil. The oil was crystallized from ethyl acetate-hexane to give the title compound (144 mg, 88%) as colorless needles. MS 474 (MH+). mp 125-126° C.

Workup

  1. stirringAfter stirring at 4° C. to room temperature for 7 h
  2. customthe reaction mixture was partitioned between ethyl acetate and water
  3. washThe organic layer was washed successively with aqueous sodium hydrogen carbonate solution and brine
  4. dry with materialdried (MgSO4)
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customto give a pale yellow oil, which
  8. customwas purified by silica gel chromatography (ethyl acetate:methanol=100:0 to 90:10, volume ratio)
  9. customto give a colorless oil
  10. customThe oil was crystallized from ethyl acetate-hexane

Sources & evidence

ORD record
ord-0d9e06b9905147ef950a28d7396865cc
Source dataset
uspto-grants-2014_03
Patent number
US08673942B2

Reaction notes

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