Reaktion #9247

Reaktionsgleichung

N-(6-bromo-7-oxo-4,5,6,7-tetrahydro-1,3-benzothiazol-2-yl)-N′-ethylurea

thionicotinamide

→

pure product

Ausbeute 36.0%

N-Ethyl-N′-[7-(3-pyridyl)-4,5-dihydro[1,3]thiazolo[4′,5′: 3,4]benzo[d][1,3]thiazol-2-yl]urea

Ausbeute 36.0%

Lösungsmittel

n-propanol

Reaktionsbedingungen

Aufarbeitung

1. 1
   EinengenThe reaction mixture was concentrated in vacuo
2. 2
   Sonstigethe residual crude material was purified by preparative HPLC

Vorschrift

A suspension of N-(6-bromo-7-oxo-4,5,6,7-tetrahydro-1,3-benzothiazol-2-yl)-N′-ethylurea (25 mg, 0.079 mmol) and thionicotinamide (11 mg, 0.079 mmol) in n-propanol (0.4 mL) was heated to about 105° C. for about 16 hrs. The reaction mixture was concentrated in vacuo and the residual crude material was purified by preparative HPLC. 10 mg (36%) pure product was isolated.

Quelle