1-Methyl-3-(5-iodo-4-methyl-4,5,6,7-tetrahydrobenzo[b]thien-4-yl)urea 、
Magnesiumoxide 、
氢气 在
钯 作用下,
以
甲醇 为溶剂,
以to afford 1-methyl-3-(4-methyl-4,5,6,7-tetrahydrobenzo[b]thien-4-yl)urea, melting point 135° C. to 145° C.的产率得到1-methyl-3-(4-methyl-4,5,6,7-tetrahydrobenzo[b]thien-4-yl)urea