Di(succinimido) carbonate → tert-butyl {2-[4-({[(2,5-dioxopyrrolidin-1-yl)oxy]carbonyl}amino)-2-(1-methyl-1H-pyrazol-5-yl)phenoxy]ethyl}carbamate

HRID 1183890

Reaktionsgleichung

C1C(=O)N(O[C:9]([O:11][N:12]2[C:17](=[O:18])[CH2:16][CH2:15][C:13]2=[O:14])=[O:10])C(=O)C1.[NH2:19][C:20]1[CH:36]=[CH:35][C:23]([O:24][CH2:25][CH2:26][NH:27][C:28](=[O:34])[O:29][C:30]([CH3:33])([CH3:32])[CH3:31])=[C:22]([C:37]2[N:41]([CH3:42])[N:40]=[CH:39][CH:38]=2)[CH:21]=1>CN(C)C=O>[O:18]=[C:17]1[CH2:16][CH2:15][C:13](=[O:14])[N:12]1[O:11][C:9]([NH:19][C:20]1[CH:36]=[CH:35][C:23]([O:24][CH2:25][CH2:26][NH:27][C:28](=[O:34])[O:29][C:30]([CH3:33])([CH3:31])[CH3:32])=[C:22]([C:37]2[N:41]([CH3:42])[N:40]=[CH:39][CH:38]=2)[CH:21]=1)=[O:10]

Komponenten

Reaktionsbedingungen

Temperatur: 0 °C

Versuchsvorschrift

N,N′-Disuccinimidyl carbonate (462 mg, 1.2 eq) was dissolved in 30 mL dimethylformamide and cooled to 0° C. To this was added the tert-butyl 2-(4-amino-2-(1-methyl-1H-pyrazol-5-yl)phenoxy)ethylcarbamate (500 mg, 1.81 mmol) dissolved in 10 mL dimethylformamide, drop-wise over 30 mins. The solution was removed from the ice bath and stirred at room temperature for 2 hr, then moved to an oil bath and stirred at 65° C. for 30 minutes. It was then removed from heating and allowed to cool to room temperature. It was used in the following step without purification. LCMS ink (%)=474 (M+H, 100).

Aufarbeitung

customThe solution was removed from the ice bath
custommoved to an oil bath
stirringstirred at 65° C. for 30 minutes
customIt was then removed
temperaturefrom heating
temperatureto cool to room temperature
customIt was used in the following step without purification

Quellen und Nachweise

ORD-Eintrag: ord-4dc85382d3f746a49dea4cfe87da19f4
Quelldatensatz: uspto-grants-2014_03
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US08664258B2

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