反应详情

using ethyl 2-chloro-5-(1,2,4,5,6,7-hexahydro-1-methyl-2,4-dioxo-3H-cyclopenta[d]pyrimidin-3-yl)-benzoate via the sodium salt of the corresponding carboxylic acid and isopropyl bromide there is obtained isopropyl 2-chloro-5-(1,2,4,5,6,7-hexahydro-1-methyl-2,4-dioxo-3H-cyclopenta[d]pyrimidin-3-yl)-benzoate, m.p. 148°-150° C.