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 1766053Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1766053
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>[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.CCO.COCCOC>[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 20074477Dimethoxyethane ethanolLösungsmittel

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 1b (1.0 g, 1.79 mmol) in bezene/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 11c (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-2ed654d7257a41f2aeb3cc12856bd068
Quelldatensatz
uspto-grants-2007_06
Patentnummer
US07229995B2

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