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Cesium carbonate → {1-[2-(6,7-Dihydro-5,8-dioxa-1,3-diaza-cyclopenta[b]naphthalen-1-yl)-quinolin-8-yl]-piperidin-4-yl}-carbamic acid tert-butyl ester

HRID 1745913
ノート
印刷プレビュー

反応式

HRID 1745913 の反応式
Br[C:2]1[CH:3]=[CH:4][CH:5]=[C:6]2[C:11]=1[N:10]=[C:9]([N:12]1[C:16]3=[CH:17][C:18]4[O:19][CH2:20][CH2:21][O:22][C:23]=4[CH:24]=[C:15]3[N:14]=[CH:13]1)[CH:8]=[CH:7]2.[C:25]([O:29][C:30](=[O:38])[NH:31][CH:32]1[CH2:37][CH2:36][NH:35][CH2:34][CH2:33]1)([CH3:28])([CH3:27])[CH3:26].C([O-])([O-])=O.[Cs+].[Cs+].C1C=CC(P(C2C(C3C(P(C4C=CC=CC=4)C4C=CC=CC=4)=CC=C4C=3C=CC=C4)=C3C(C=CC=C3)=CC=2)C2C=CC=CC=2)=CC=1>O1CCOCC1.C(O)(C(F)(F)F)=O.C(Cl)Cl.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[C:25]([O:29][C:30](=[O:38])[NH:31][CH:32]1[CH2:37][CH2:36][N:35]([C:2]2[CH:3]=[CH:4][CH:5]=[C:6]3[C:11]=2[N:10]=[C:9]([N:12]2[C:16]4=[CH:17][C:18]5[O:19][CH2:20][CH2:21][O:22][C:23]=5[CH:24]=[C:15]4[N:14]=[CH:13]2)[CH:8]=[CH:7]3)[CH2:34][CH2:33]1)([CH3:28])([CH3:26])[CH3:27]
参加物実験手順後処理出典と根拠反応ノート

参加物

9

反応物 4

HCID 10796Cesium carbonateHCID 634876Binap, (A+-)-HCID 7238334-(N-Boc-amino)piperidineHCID 222269031-(8-Bromo-quinolin-2-yl)-6,7-dihydro-1H-5,8-dioxa-1,3-diaza-cyclopenta[b]naphthalene

生成物 1

HCID 69559050{1-[2-(6,7-Dihydro-5,8-dioxa-1,3-diaza-cyclopenta[b]naphthalen-1-yl)-quinolin-8-yl]-piperidin-4-yl}-carbamic acid tert-butyl ester
収率 54.5%

試薬・触媒・溶媒 4

HCID 9811564Bis(dibenzylideneacetone)palladium触媒HCID 6344Dichloromethane溶媒HCID 6422Trifluoroacetic acid溶媒HCID 312751,4-Dioxane溶媒

実験手順

1-(8-Bromo-quinolin-2-yl)-6,7-dihydro-1H-5,8-dioxa-1,3-diaza-cyclopenta[b]naphthalene 81C (700 mg, 1.83 mMol) and piperidin-4-yl-carbamic acid tert-butyl ester (733 mg, 3.66 mMol) were dissolved in 6.0 mL of dioxane under an atmosphere of dry N2. To this solution was added Cs2CO3 (835 mg, 2.56 mMol), racemic-BINAP (68 mg, 0.109 mMol) and tris(dibenzylideneacetone)dipalladium (0) (34 mg, 0.037 mMol) and the reaction mixture was heated to reflux and reacted at this temperature overnight. The mixture was then cooled to ambient temperature, filtered; and concentrated under vacuum to give 1.12 g of an orange film. The film was dissolved in a solution of 5 mL of TFA and 5 mL of DCM under an atmosphere of dry N2. The reaction mixture was stirred at ambient temperature for 30 minutes after which time it was concentrated under vacuum to give a yellow oil. The oil was partitioned between ethyl ether and 0.1 N aqueous HCl. The aqueous layer was then washed with DCM. The aqueous layer was basified to pH˜11 with NaOH. The resulting solution was washed three times with DCM. The DCM extracts were combined, dried over Na2SO4, filtered and concentrated to give 500 mg of a yellow solid. The solid was chromatographed on flash silica gel eluting with MeOH/DCM (1090) to give 127 mg of the title compound 81 as a yellow solid.

後処理

  1. temperatureto reflux
  2. customreacted at this temperature overnight
  3. filtrationfiltered
  4. concentrationand concentrated under vacuum
  5. customto give 1.12 g of an orange film
  6. concentrationwas concentrated under vacuum
  7. customto give a yellow oil
  8. customThe oil was partitioned between ethyl ether and 0.1 N aqueous HCl
  9. washThe aqueous layer was then washed with DCM
  10. washThe resulting solution was washed three times with DCM
  11. dry with materialdried over Na2SO4
  12. filtrationfiltered
  13. concentrationconcentrated

出典と根拠

ORDレコード
ord-bd3751ee5cac41bd8ee2151391e89220
出典データセット
uspto-grants-2006_03
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07019147B1

反応ノート

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