Water → HCID 16073837, compound

Participants

Reaction Conditions

Reaction Steps

A solution of N-(4-chlorobenzyl)-4-hydroxy-6-(3-hydroxy-1-propynyl)-3-quinolinecarboxamide from Preparation No. 5 (0.458 g) is dissolved in DMF (10 mL), and K2CO3 (0.69 g) and 2-(diisoproplyamino)ethyl chloride hydrochloride (0.50 g) are added. The reaction mixture is heated to 90° C. for 2 h, then allowed to stir at room temperature overnight. A drop of water is added and the mixture is heated for 20 h. An additional equivalent of 2-(diisoproplyamino)ethyl chloride hydrochloride (0.25 g, 1.25 mmol) is added and the mixture is heated at 100° C. for 5 h, and then stirred at room temperature overnight. Water is added and an oily solid formed, which is isolated by decanting the liquid. Column chromatography (elution with 1-2% MeOH/CHCl3) gave 0.45 g of a solid. Crystallization by dissolving in CH2Cl2 with a few drops of MeOH and adding to a 1:1 solution of pentane/Et2O gave 0.22 g of the title compound as a solid.

Provenance & Evidence