ferrocenylmethylcarbamic acid 4-nitrophenyl ester   、                                                                                      
5,17-diamino-25,26,27,28-tetrakis(propyloxy)calix[4]arene                                                                                                                                                              在
                                                                                                                                                                                 ethyldiisopropylamine   、                                                                                                  4-dimethylaminopyridine                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                                                        以68%的产率得到cyclopenta-1,3-diene;1-(cyclopenta-1,4-dien-1-ylmethyl)-3-[17-(cyclopenta-1,4-dien-1-ylmethylcarbamoylamino)-25,26,27,28-tetrapropoxy-5-pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(25),3,5,7(28),9(27),10,12,15(26),16,18,21,23-dodecaenyl]urea;iron(2+)