... The acid chloride of 7j was prepared with oxalyl chloride and used to acylate 4-[2-(methylamino) ethyl]morpholine to give 7r. 0022-2623/94/1837-4538$04.50/0 0 1994 American Chemical Society Page 2. ... Scheme 1 Journal of Medicinal Chemistry, 1994, Vol. 37, No. ...