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(1-Ethylazetidin-3-yl)methanamine → (1aRS,7bSR)-5-{2-[(1-ethylazetidin-3-ylmethyl)amino]benzenesulfonylamino}-1,1a,2,7b-tetrahydrocyclopropa[c]chromene-4-carboxylic acid

HRID 927874
Notes
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Reaction equation

HRID 927874 reaction equation
F[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[S:8]([NH:11][C:12]1[C:21]([C:22]([OH:24])=[O:23])=[C:20]2[C:15]([CH:16]3[CH2:25][CH:17]3[CH2:18][O:19]2)=[CH:14][CH:13]=1)(=[O:10])=[O:9].[CH2:26]([N:28]1[CH2:31][CH:30]([CH2:32][NH2:33])[CH2:29]1)[CH3:27]>CS(C)=O>[CH2:26]([N:28]1[CH2:31][CH:30]([CH2:32][NH:33][C:2]2[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=2[S:8]([NH:11][C:12]2[C:21]([C:22]([OH:24])=[O:23])=[C:20]3[C:15]([CH:16]4[CH2:25][CH:17]4[CH2:18][O:19]3)=[CH:14][CH:13]=2)(=[O:10])=[O:9])[CH2:29]1)[CH3:27]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 2

HCID 65992061(1-Ethylazetidin-3-yl)methanamine2×HCID 86713249(1aRS,7bSR)-5-(2-fluorobenzenesulfonylamino)-1,1a,2,7b-tetrahydrocyclopropa[c]chromene-4-carboxylic acid

Product 1

HCID 71006917(1aRS,7bSR)-5-{2-[(1-ethylazetidin-3-ylmethyl)amino]benzenesulfonylamino}-1,1a,2,7b-tetrahydrocyclopropa[c]chromene-4-carboxylic acid

Reagents, catalysts & solvents 1

HCID 679Dimethyl SulfoxideSolvent

Procedure

A mixture of (1aRS,7bSR)-5-(2-fluorobenzenesulfonylamino)-1,1a,2,7b-tetrahydrocyclopropa-[c]chromene-4-carboxylic (Intermediate 67, 0.07 g) and (1-ethylazetidin-3-yl)methylamine (Intermediate 149, 0.7 g) in DMSO (1.4 mL) was divided evenly between 7 microwave vials and each was irradiated in the microwave at 130° C. for 4 hours. After cooling, the combined mixture was concentrated under vacuum and the residue was purified by chromatography on silica, eluting with a mixture of methanol and DCM (10%). The product was repurified by HPLC (C18) to give (1aRS,7bSR)-5-{2-[(1-ethylazetidin-3-ylmethyl)amino]benzenesulfonylamino}-1,1a,2,7b-tetrahydrocyclopropa[c]chromene-4-carboxylic acid (0.012 g) as an off-white solid.

Workup

  1. customeach was irradiated in the microwave at 130° C. for 4 hours
  2. temperatureAfter cooling
  3. concentrationthe combined mixture was concentrated under vacuum
  4. customthe residue was purified by chromatography on silica
  5. washeluting with a mixture of methanol and DCM (10%)
  6. customThe product was repurified by HPLC (C18)

Sources & evidence

ORD record
ord-24312f7b0bae444095f7be3e5e782d67
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