Triphenylphosphine → 5-(5-(3-Fluoro-4-(2-(pyrrolidin-1-yl)ethoxy)phenyl)-8-oxo-6-thioxo-5,7-diazaspiro[3.4]octan-7-yl)-3-(trifluoromethyl)picolinonitrile

HRID 515818Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 515818
[F:1][C:2]1[CH:3]=[C:4]([N:9]2[C:16](=[S:17])[N:15]([C:18]3[CH:19]=[C:20]([C:26]([F:29])([F:28])[F:27])[C:21]([C:24]#[N:25])=[N:22][CH:23]=3)[C:14](=[O:30])[C:10]32[CH2:13][CH2:12][CH2:11]3)[CH:5]=[CH:6][C:7]=1[OH:8].[N:31]1([CH2:36][CH2:37]O)[CH2:35][CH2:34][CH2:33][CH2:32]1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OC(C)C)=O)=NC(OC(C)C)=O>C1COCC1>[F:1][C:2]1[CH:3]=[C:4]([N:9]2[C:16](=[S:17])[N:15]([C:18]3[CH:19]=[C:20]([C:26]([F:29])([F:27])[F:28])[C:21]([C:24]#[N:25])=[N:22][CH:23]=3)[C:14](=[O:30])[C:10]32[CH2:11][CH2:12][CH2:13]3)[CH:5]=[CH:6][C:7]=1[O:8][CH2:37][CH2:36][N:31]1[CH2:35][CH2:34][CH2:33][CH2:32]1

Komponenten

6

Edukt 4

HCID 11776TriphenylphosphineHCID 75555Diisopropyl diazene-1,2-dicarboxylateHCID 762881-PyrrolidineethanolHCID 533732145-(5-(3-Fluoro-4-hydroxyphenyl)-8-oxo-6-thioxo-5,7-diazaspiro[3.4]octan-7-yl)-3-(trifluoromethyl)picolinonitrile2×

Produkt 1

HCID 866834805-(5-(3-Fluoro-4-(2-(pyrrolidin-1-yl)ethoxy)phenyl)-8-oxo-6-thioxo-5,7-diazaspiro[3.4]octan-7-yl)-3-(trifluoromethyl)picolinonitrile

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

A mixture of 5-(5-(3-fluoro-4-hydroxyphenyl)-8-oxo-6-thioxo-5,7-diazaspiro[3.4]octan-7-yl)-3-(trifluoromethyl)picolinonitrile (Compound 1, 100 mg, 0.23 mmol), 2-(pyrrolidin-1-yl)ethanol (35 μL, 0.30 mmol), triphenylphosphine (79 mg, 0.30 mmol), and diisopropyl azodicarboxylate (60 μL, 0.30 mmol) in THF (5 mL) was stirred at room temperature for 2 days. The reaction mixture was absorbed on silica gel and purified by column chromatography on silica gel eluting with 0 to 10% MeOH/DCM to afford impure desired product that was repurified by reverse phase HPLC (acetonitrile/water, 0.1% TFA). The fractions containing the desired compound were combined, acetonitrile was removed in vacuo, and the remaining aqueous layer was treated with a saturated solution of sodium bicarbonate. The aqueous layer was extracted with DCM (3×), the organics were combined, dried over sodium sulfate, and evaporated to dryness to afford 30 mg of 5-(5-(3-fluoro-4-(2-(pyrrolidin-1-yl)ethoxy)phenyl)-8-oxo-6-thioxo-5,7-diazaspiro[3.4]octan-7-yl)-3-(trifluoromethyl)picolinonitrile as a white solid. 1H NMR (300 MHz, DMSO-d6) δ 9.21 (d, 1H), 8.74 (d, 1H), 7.40 (t, 1H), 7.35 (dd, 1H), 7.22 (d, 1H), 4.24 (t, 2H), 2.86 (t, 2H), 2.65-2.42 (m, 8H), 1.98-1.95 (m, 1H), 1.70 (m, 4H), 1.60-1.54 (m, 1H). LCMS [M+1]+ 534.9.

Aufarbeitung

  1. customThe reaction mixture was absorbed on silica gel
  2. custompurified by column chromatography on silica gel eluting with 0 to 10% MeOH/DCM

Quellen und Nachweise

ORD-Eintrag
ord-f5cf06e3c73d49189a1196763626da86
Quelldatensatz
uspto-grants-2015_08
Patentnummer
US09108944B2

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