Triethylamine → HCID 86621214, Verbindung

Temperatur

60 °C

To 1-(benzo[d][1,3]dioxol-5-yl)cyclopropanecarboxylic acid (864 mg, 4.2 mmol) was slowly added SOCl2 (916 μL, 12.6 mmol) followed by DMF (3 drops). The reaction mixture was heated at 60° C. for 0.5 h. The excess SOCl2 was removed under vacuum. The acid chloride was then dissolved in anhydrous CH2Cl2 (6 mL) and was slowly added to a solution of (R)-N-((2-amino-4-methylthiazol-5-yl)(2-chlorophenyl)methyl)-2-methylpropane-2-sulfinamide (Isomer A) (1.35 g, 3.8 mmol) and Et3N (2.92 mL, 21.0 mmol) in anhydrous CH2Cl2 (18 mL). The reaction mixture was stirred at room temperature for 18 h, diluted with CH2Cl2 and washed with 1N HCl solution, saturated aqueous NaHCO3 solution and brine. The organic layer was dried over MgSO4 and concentrated to provide 1-(benzo[d][1,3]dioxol-5-yl)-N-(5-((2-chlorophenyl)((R)-1,1-dimethylethylsulfinamido)methyl)-4-methylthiazol-2-yl)cyclopropanecarboxamide (Isomer A) as an orange solid (1.54 g, 75%) that was used without further purification. HPLC ret. time 3.59 min, 10-99% CH3CN, 5 min run; ESI-MS 546.5 m/z (MH+).

1. customThe excess SOCl2 was removed under vacuum
2. dissolutionThe acid chloride was then dissolved in anhydrous CH2Cl2 (6 mL)
3. washwashed with 1N HCl solution, saturated aqueous NaHCO3 solution and brine
4. dry with materialThe organic layer was dried over MgSO4
5. concentrationconcentrated

ORD-Eintrag

ord-04e42e8797e0478da995d1ab5d49da3e

Quelldatensatz

uspto-grants-2011_08

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US07999113B2