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Iodoethane → methyl (1aRS,7bSR)-5-[2-(1-ethylazetidin-3-yl)-4-fluorobenzenesulfonylamino]-1,1a,2,7b-tetrahydrocyclopropa-[c]chromene-4-carboxylate

HRID 927971
Notes
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Reaction equation

HRID 927971 reaction equation
[NH:1]1[CH2:4][CH:3]([C:5]2[CH:10]=[C:9]([F:11])[CH:8]=[CH:7][C:6]=2[S:12]([NH:15][C:16]2[C:25]([C:26]([O:28][CH3:29])=[O:27])=[C:24]3[C:19]([CH:20]4[CH2:30][CH:21]4[CH2:22][O:23]3)=[CH:18][CH:17]=2)(=[O:14])=[O:13])[CH2:2]1.I[CH2:32][CH3:33].C(=O)([O-])[O-].[K+].[K+]>C(#N)C>[CH2:32]([N:1]1[CH2:4][CH:3]([C:5]2[CH:10]=[C:9]([F:11])[CH:8]=[CH:7][C:6]=2[S:12]([NH:15][C:16]2[C:25]([C:26]([O:28][CH3:29])=[O:27])=[C:24]3[C:19]([CH:20]4[CH2:30][CH:21]4[CH2:22][O:23]3)=[CH:18][CH:17]=2)(=[O:13])=[O:14])[CH2:2]1)[CH3:33]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 6340IodoethaneHCID 11430Potassium CarbonateHCID 71006941methyl (1aRS,7bSR)-5-[2-(azetidin-3-yl)-4-fluorobenzenesulfonylamino]-1,1a,2,7b-tetrahydrocyclopropa[c]chromene-4-carboxylate2×

Product 1

HCID 77979733methyl (1aRS,7bSR)-5-[2-(1-ethylazetidin-3-yl)-4-fluorobenzenesulfonylamino]-1,1a,2,7b-tetrahydrocyclopropa-[c]chromene-4-carboxylateYield 22.2%

Reagents, catalysts & solvents

1
HCID 6342AcetonitrileSolvent

Procedure

A mixture of methyl (1aRS,7bSR)-5-[2-(azetidin-3-yl)-4-fluorobenzenesulfonylamino]-1,1a,2,7b-tetrahydrocyclopropa[c]chromene-4-carboxylate (Intermediate 87, 0.216 g), iodoethane (0.078 g) and potassium carbonate (0.138 g) in acetonitrile (5 mL) was stirred at room temperature for 18 hours. The mixture was evaporated to dryness and the residue was purified by chromatography on silica, eluting with a mixture of methanol and DCM with a gradient of 0-15% to give methyl (1aRS,7bSR)-5-[2-(1-ethylazetidin-3-yl)-4-fluorobenzenesulfonylamino]-1,1a,2,7b-tetrahydrocyclopropa-[c]chromene-4-carboxylate (0.051 g).

Workup

  1. customThe mixture was evaporated to dryness
  2. customthe residue was purified by chromatography on silica
  3. washeluting with a mixture of methanol and DCM with a gradient of 0-15%

Sources & evidence

ORD record
ord-b94e7edc54df4b129bf2be585d886362
Source dataset
uspto-grants-2016_03
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09290472B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes