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Methanesulfonic Acid → Edoxaban

HRID 1808312
Notes
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Reaction equation

HRID 1808312 reaction equation
CS(O)(=O)=O.[Cl:6][C:7]1[CH:8]=[CH:9][C:10]([NH:13][C:14](=[O:37])[C:15]([NH:17][C@H:18]2[CH2:23][CH2:22][C@H:21]([C:24]([N:26]([CH3:28])[CH3:27])=[O:25])[CH2:20][C@H:19]2[NH:29][C:30](=O)[O:31]C(C)(C)C)=[O:16])=[N:11][CH:12]=1.Cl.[CH3:39][N:40]1[CH2:45][CH2:44][C:43]2[N:46]=[C:47](C(O)=O)[S:48][C:42]=2[CH2:41]1.ON1C2C=CC=CC=2N=N1.Cl.C(N=C=NCCCN(C)C)C>C(#N)C.O.C(N(CC)CC)C>[Cl:6][C:7]1[CH:8]=[CH:9][C:10]([NH:13][C:14](=[O:37])[C:15]([NH:17][C@H:18]2[CH2:23][CH2:22][C@H:21]([C:24]([N:26]([CH3:27])[CH3:28])=[O:25])[CH2:20][C@H:19]2[NH:29][C:30]([C:47]2[S:48][C:42]3[CH2:41][N:40]([CH3:39])[CH2:45][CH2:44][C:43]=3[N:46]=2)=[O:31])=[O:16])=[N:11][CH:12]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

9

Reactant 5

HCID 6395Methanesulfonic AcidHCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 111490315-Methyl-4,5,6,7-tetrahydro[1,3]thiazolo[5,4-c]pyridine-2-carboxylic acid hydrochlorideHCID 46911214EthanediaMide iMpurity D

Product 1

HCID 10280735
Edoxaban
Yield 92.7%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6342AcetonitrileSolventHCID 8471TriethylamineSolvent2×

Procedure

Methanesulfonic acid (66 ml) was added to a suspension of tert-butyl [(1R,2S,5S)-2-({[(5-chloropyridin-2-yl)amino](oxo)acetyl}amino)-5-(dimethylaminocarbonyl)cyclohexyl]carbamate (1) (95.1 g) in acetonitrile (1900 ml) at room temperature, and the mixture was stirred at this temperature for 2 hours. To the reaction solution, triethylamine (155 ml), 5-methyl-4,5,6,7-tetrahydro[1,3]thiazolo[5,4-c]pyridine-2-carboxylic acid hydrochloride (8) (52.5 g), 1-hydroxybenzotriazole (33.0 g), and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (46.8 g) were added under ice cooling, and the mixture was stirred at room temperature for 16 hours. Triethylamine and water were added thereto, and the mixture was stirred for 1 hour under ice cooling. Then, crystals were collected by filtration to obtain the title compound (103.2 g).

Workup

  1. stirringthe mixture was stirred at room temperature for 16 hours
  2. stirringthe mixture was stirred for 1 hour under ice cooling
  3. filtrationThen, crystals were collected by filtration

Sources & evidence

ORD record
ord-6de3c715d4c2499a9bc2bbbf1d53a3f7
Source dataset
uspto-grants-2013_01
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08357808B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes