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Triethylamine → (S)-8-(2-chloro-2-(4-methyl-1-oxo-1,3-dihydroisobenzofuran-5-yl)ethyl)-2-(4-methyl-5-oxo-2,5-dihydrofuran-3-yl)-2,8-diazaspiro[4.5]decan-1-one

HRID 1501847
Notes
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Reaction equation

HRID 1501847 reaction equation
O[C@H:2]([C:22]1[CH:31]=[CH:30][C:25]2[C:26](=[O:29])[O:27][CH2:28][C:24]=2[C:23]=1[CH3:32])[CH2:3][N:4]1[CH2:21][CH2:20][C:7]2([C:11](=[O:12])[N:10]([C:13]3[CH2:14][O:15][C:16](=[O:19])[C:17]=3[CH3:18])[CH2:9][CH2:8]2)[CH2:6][CH2:5]1.CS([Cl:37])(=O)=O.C(N(CC)CC)C>C(Cl)Cl.CN(C)C1C=CN=CC=1>[Cl:37][C@@H:2]([C:22]1[C:23]([CH3:32])=[C:24]2[C:25](=[CH:30][CH:31]=1)[C:26](=[O:29])[O:27][CH2:28]2)[CH2:3][N:4]1[CH2:21][CH2:20][C:7]2([C:11](=[O:12])[N:10]([C:13]3[CH2:14][O:15][C:16](=[O:19])[C:17]=3[CH3:18])[CH2:9][CH2:8]2)[CH2:6][CH2:5]1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 729500748-[(2R)-2-hydroxy-2-(4-methyl-1-oxo-1,3-dihydro-2-benzofuran-5-yl)ethyl]-2-(4-methyl-5-oxo-2,5-dihydrofuran-3-yl)-2,8-diazaspiro[4.5]decan-1-one

Product 1

HCID 86709526(S)-8-(2-chloro-2-(4-methyl-1-oxo-1,3-dihydroisobenzofuran-5-yl)ethyl)-2-(4-methyl-5-oxo-2,5-dihydrofuran-3-yl)-2,8-diazaspiro[4.5]decan-1-one

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent

Procedure

To a solution of 8-[(2R)-2-hydroxy-2-(4-methyl-1-oxo-1,3-dihydro-2-benzofuran-5-yl)ethyl]-2-(4-methyl-5-oxo-2,5-dihydrofuran-3-yl)-2,8-diazaspiro[4.5]decan-1-one (Example 7) (1.1 g, 2.5 mmol) and methanesulfonyl chloride (0.584 mL, 7.49 mmol) in DCM (30 mL) was added triethylamine (1.22 mL, 8.74 mmol) and N,N-dimethylpyridin-4-amine (0.031 g, 0.250 mmol) at −10 to −15° C. (ice-NaCl). The mixture was stirred at the same temperature for 20 min, quenched with NH4Cl aqueous. The organic layer was separated, and the aqueous was extracted with DCM (30 mL). The combined organic layers were dried (MgSO4) and concentrated under reduced pressure to give product was used in the next step without further purification. LCMS: 459.05 (M+1).

Workup

  1. customquenched with NH4Cl aqueous
  2. customThe organic layer was separated
  3. extractionthe aqueous was extracted with DCM (30 mL)
  4. dry with materialThe combined organic layers were dried (MgSO4)
  5. concentrationconcentrated under reduced pressure
  6. customto give product
  7. customwas used in the next step without further purification

Sources & evidence

ORD record
ord-fcd93a7a8266476f964ed41331631873
Source dataset
uspto-grants-2015_12
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09206198B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes