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Cesium carbonate → HCID 131736377, compound

HRID 1055482
Notes
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Reaction equation

HRID 1055482 reaction equation
[CH3:1][N:2]([C@@H:10]([CH3:31])[C:11](=[O:30])[NH:12][CH:13]1[C:19]2([CH2:24][CH2:23][O:22][CH2:21][CH2:20]2)[O:18][C:17]2[CH:25]=[CH:26][CH:27]=[CH:28][C:16]=2[NH:15][C:14]1=[O:29])[C:3](=[O:9])[O:4][C:5]([CH3:8])([CH3:7])[CH3:6].CS(O[CH2:37][C:38]1[C:47]2[C:42](=[CH:43][CH:44]=[CH:45][CH:46]=2)[CH:41]=[CH:40][C:39]=1[O:48][CH:49]([F:51])[F:50])(=O)=O.C([O-])([O-])=O.[Cs+].[Cs+]>CN(C=O)C.CCOC(C)=O>[F:50][CH:49]([F:51])[O:48][C:39]1[CH:40]=[CH:41][C:42]2[C:47](=[CH:46][CH:45]=[CH:44][CH:43]=2)[C:38]=1[CH2:37][N:15]1[C:14](=[O:29])[C@@H:13]([NH:12][C:11](=[O:30])[C@@H:10]([N:2]([CH3:1])[C:3](=[O:9])[O:4][C:5]([CH3:8])([CH3:6])[CH3:7])[CH3:31])[C:19]2([CH2:20][CH2:21][O:22][CH2:23][CH2:24]2)[O:18][C:17]2[CH:25]=[CH:26][CH:27]=[CH:28][C:16]1=2.[F:50][CH:49]([F:51])[O:48][C:39]1[CH:40]=[CH:41][C:42]2[C:47](=[CH:46][CH:45]=[CH:44][CH:43]=2)[C:38]=1[CH2:37][N:15]1[C:14](=[O:29])[C@H:13]([NH:12][C:11](=[O:30])[C@@H:10]([N:2]([CH3:1])[C:3](=[O:9])[O:4][C:5]([CH3:8])([CH3:6])[CH3:7])[CH3:31])[C:19]2([CH2:20][CH2:21][O:22][CH2:23][CH2:24]2)[O:18][C:17]2[CH:25]=[CH:26][CH:27]=[CH:28][C:16]1=2
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 3

HCID 10796Cesium carbonateHCID 90037025HCID 90037025, compoundHCID 118574082HCID 118574082, compound

Product 2

HCID 131736376HCID 131736376, compoundYield 30%HCID 131736377HCID 131736377, compoundYield 42%

Reagents, catalysts & solvents

2
HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

A mixture of tert-butyl methyl((2S)-1-oxo-1-(4-oxo-2′,3′,4,5,5′,6′-hexahydro-3H-spiro[benzo[b][1,4]oxazepine-2,4′-pyran]-3-ylamino)propan-2-yl)carbamate (118 mg, 272 μmol), (2-(difluoromethoxy)naphthalen-1-yl)methyl methanesulfonate (98.7 mg, 327 μmol) and Cs2CO3 (115 mg, 354 μmol) in DMF (681 μL) was stirred at RT for 20 h. The mixture was diluted with EtOAc, washed with H2O and brine, then dried over Na2SO4, and filtered. The filtrate was concentrated to give a residue that was purified by silica gel chromatography. The resulting material was purified by SFC to provide tert-butyl (S)-1-((S)-5-((2-(difluoromethoxy)naphthalen-1-yl)methyl)-4-oxo-2′,3′,4,5,5′,6′-hexahydro-3H-spiro[benzo[b][1,4]oxazepine-2,4′-pyran]-3-ylamino)-1-oxopropan-2-yl(methyl)carbamate (52.6 mg, 30%) as a white foam (MS m/z 662 (MNa)′) and tert-butyl (S)-1-((R)-5-((2-(difluoromethoxy)naphthalen-1-yl)methyl)-4-oxo-2′,3′,4,5,5′,6′-hexahydro-3H-spiro[benzo[b][1,4]oxazepine-2,4′-pyran]-3-ylamino)-1-oxopropan-2-yl(methyl)carbamate (72.8 mg, 42%) as a white foam (MS m/z 662 (MNa)+).

Workup

  1. washwashed with H2O and brine
  2. dry with materialdried over Na2SO4
  3. filtrationfiltered
  4. concentrationThe filtrate was concentrated
  5. customto give a residue that
  6. customwas purified by silica gel chromatography
  7. customThe resulting material was purified by SFC

Sources & evidence

ORD record
ord-4ea00d6d93ec4775949ff184513edaaf
Source dataset
uspto-grants-2016_07
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09394263B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes