1,8-Diazabicyclo(5.4.0)undec-7-ene → N-(2-cyclopropylmethoxypyridin-3-ylsulfonyl)-N'-(4-methoxy-6-methyl-1,3,5-triazin-2-yl)urea

Participants

Reaction Steps

4.56 g of 2-cyclopropylmethoxypyridin-3-ylsulfonamide and 3.13 ml of 1,8-diazabicyclo[5.4.0]undec-7-ene are suspended in 50 ml of dioxan and to this suspension are added 5.46 g of N-(4methoxy-6-methyl-1,3,5-triazin-2-yl)phenylcarbamate. The mixture is stirred for 20 minutes and concentrated by evaporation. The residue is triturated with 10 ml of 2N hydrochloric acid and the precipitated solid is isolated and washed with water and ether, affording 6.90 g of N-(2-cyclopropylmethoxypyridin-3-ylsulfonyl)-N'-(4-methoxy-6-methyl-1,3,5-triazin-2-yl)urea with a melting point of 165°-167° C.

Provenance & Evidence