2-Fluoro-3-methoxyphenylboronic acid → 3-[2(R)-tert-butoxycarbonylamino-2-cyclohexylethyl]-5-(2-fluoro-3-methoxyphenyl)-1-[2,6-difluorobenzyl]-6-methyl-pyrimidine-2,4(1H,3H)-dione

HRID 28501Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 28501
Br[C:2]1[C:3](=[O:35])[N:4]([CH2:19][C@H:20]([NH:27][C:28]([O:30][C:31]([CH3:34])([CH3:33])[CH3:32])=[O:29])[CH:21]2[CH2:26][CH2:25][CH2:24][CH2:23][CH2:22]2)[C:5](=[O:18])[N:6]([CH2:9][C:10]2[C:15]([F:16])=[CH:14][CH:13]=[CH:12][C:11]=2[F:17])[C:7]=1[CH3:8].[F:36][C:37]1[C:42]([O:43][CH3:44])=[CH:41][CH:40]=[CH:39][C:38]=1B(O)O>C1C=CC=CC=1.CCO.COCCOC.[Pd].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>[C:31]([O:30][C:28]([NH:27][C@H:20]([CH:21]1[CH2:26][CH2:25][CH2:24][CH2:23][CH2:22]1)[CH2:19][N:4]1[C:3](=[O:35])[C:2]([C:38]2[CH:39]=[CH:40][CH:41]=[C:42]([O:43][CH3:44])[C:37]=2[F:36])=[C:7]([CH3:8])[N:6]([CH2:9][C:10]2[C:15]([F:16])=[CH:14][CH:13]=[CH:12][C:11]=2[F:17])[C:5]1=[O:18])=[O:29])([CH3:34])([CH3:33])[CH3:32]

Komponenten

5

Edukt 2

HCID 49857442-Fluoro-3-methoxyphenylboronic acidHCID 210184025-bromo-3-[2(R)-tert-butoxycarbonylamino-2-cyclohexylethyl]-1-[2,6-difluorobenzyl]-6-methyl-pyrimidine-2,4(1H,3H)-dione

Produkt 1

HCID 589650063-[2(R)-tert-butoxycarbonylamino-2-cyclohexylethyl]-5-(2-fluoro-3-methoxyphenyl)-1-[2,6-difluorobenzyl]-6-methyl-pyrimidine-2,4(1H,3H)-dioneAusbeute 32,3 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 11979704Tetrakis(triphenylphosphine)palladiumKatalysatorHCID 86588578Benzene ethanol 1,2-dimethoxyethaneLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

5-Bromo-3-[2(R)-tert-butoxycarbonylamino-2-cyclohexylethyl]-1-[2,6-difluorobenzyl]-6-methyl-pyrimidine-2,4(1H,3H)-dione 4b (1.0 g, 1.79 mmol) in benzene/EtOH/ethylene glycol dimethyl ether (20/2/22 mL) was added 2-fluoro-3-methoxyphenylboronic acid (382 mg, 2.24 mmol) and saturated Ba(OH)2/water (˜0.5 M, 15 mL). The reaction mixture was deoxygenated with N2 for 10 minutes, tetrakis(triphenylphosphine) palladium (0) (208 mg, 0.18 mmol) was added and the reaction mixture was heated at 80° C. overnight under N2. The reaction mixture was partitioned between brine and EtOAc. The organic layer was dried (sodium sulfate), evaporated, and purified by flash chromatography (silica, 30% EtOAc/hexanes) to give compound 4c (348 mg, 32.3%). MS (CI) m/z 502.2 (MH+-Boc).

Aufarbeitung

  1. customThe reaction mixture was deoxygenated with N2 for 10 minutes
  2. customThe reaction mixture was partitioned between brine and EtOAc
  3. dry with materialThe organic layer was dried (sodium sulfate)
  4. customevaporated
  5. custompurified by flash chromatography (silica, 30% EtOAc/hexanes)

Quellen und Nachweise

ORD-Eintrag
ord-702ff4a8ff744da78ae224d5f9fec553
Quelldatensatz
uspto-grants-2008_09
Patentnummer
US07419983B2

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