Diethylamine → methyl (1aRS,7bSR)-5-{N-(methoxycarbonyl)-N-[2((Z)-4-diethylaminobut-1-enyl)-4-fluorobenzenesulfonyl]amino}-1,1a,2,7b-tetrahydrocyclopropa-[c]chromene-4-carboxylate

HRID 927958ノート

反応式

HRID 927958 の反応式
CS(OS(C)(=O)=O)(=O)=O.[CH3:10][O:11][C:12]([N:14]([C:30]1[C:39]([C:40]([O:42][CH3:43])=[O:41])=[C:38]2[C:33]([CH:34]3[CH2:44][CH:35]3[CH2:36][O:37]2)=[CH:32][CH:31]=1)[S:15]([C:18]1[CH:23]=[CH:22][C:21]([F:24])=[CH:20][C:19]=1/[CH:25]=[CH:26]\[CH2:27][CH2:28]O)(=[O:17])=[O:16])=[O:13].[CH:45]([N:48](C(C)C)[CH2:49][CH3:50])(C)[CH3:46].C(NCC)C>C(Cl)Cl.O>[CH3:10][O:11][C:12]([N:14]([C:30]1[C:39]([C:40]([O:42][CH3:43])=[O:41])=[C:38]2[C:33]([CH:34]3[CH2:44][CH:35]3[CH2:36][O:37]2)=[CH:32][CH:31]=1)[S:15]([C:18]1[CH:23]=[CH:22][C:21]([F:24])=[CH:20][C:19]=1/[CH:25]=[CH:26]\[CH2:27][CH2:28][N:48]([CH2:49][CH3:50])[CH2:45][CH3:46])(=[O:17])=[O:16])=[O:13]

参加物

7

反応物 4

HCID 8021DiethylamineHCID 81531DiisopropylethylamineHCID 81560Methanesulfonic anhydrideHCID 86713307Methyl (1aRS,7bSR)-5-{N-[methoxycarbonyl]-N-[2-((Z)-4-hydroxybut-1-enyl)-4-fluorobenzenesulfonyl]amino}-1,1a,2,7b-tetrahydrocyclopropa[c]chromene-4-carboxylate2 回

生成物 1

HCID 90086604methyl (1aRS,7bSR)-5-{N-(methoxycarbonyl)-N-[2((Z)-4-diethylaminobut-1-enyl)-4-fluorobenzenesulfonyl]amino}-1,1a,2,7b-tetrahydrocyclopropa-[c]chromene-4-carboxylate収率 60.1%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 6344Dichloromethane溶媒

実験手順

Methyl sulfonic anhydride (0.062 g) was added to a stirred, cooled mixture of methyl (1aRS,7bSR)-5-{N-[methoxycarbonyl]-N-[2-((Z)-4-hydroxybut-1-enyl)-4-fluorobenzene-sulfonyl]amino}-1,1a,2,7b-tetrahydrocyclopropa[c]chromene-4-carboxylate (Intermediate 73, 0.12 g) and N,N-di-isopropyl-N-ethylamine (0.046 g) in DCM (15 mL) at 0° C. The resultant mixture was stirred at 0° C. for 20 minutes. Diethylamine (0.026 g) was added and the mixture was then stirred at room temperature for 24 hours. The mixture was diluted with water and extracted with DCM, dried (Na2SO4) and filtered. The filtrate 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 2-10% to give methyl (1aRS,7bSR)-5-{N-(methoxycarbonyl)-N-[2((Z)-4-diethylaminobut-1-enyl)-4-fluorobenzenesulfonyl]amino}-1,1a,2,7b-tetrahydrocyclopropa-[c]chromene-4-carboxylate (0.08 g) as alight yellow solid.

後処理

  1. temperaturecooled
  2. extractionextracted with DCM
  3. dry with materialdried (Na2SO4)
  4. filtrationfiltered
  5. customThe filtrate was evaporated to dryness
  6. customthe residue was purified by chromatography on silica
  7. washeluting with a mixture of methanol and DCM with a gradient of 2-10%

出典と根拠

ORDレコード
ord-dfa2be822814449a8245921e9eb5ad85
出典データセット
uspto-grants-2016_03
特許番号
US09290472B2

反応ノート

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