tert-Butyl {2-[2-chloro-3-(phenylselanyl)propyl]-3-thienyl}carbamate                                                                                                                                                              在
                                                                                                                                                                                 
silica gel                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 4,5,7,8-Tetrahydro-5-oxo-7-(phenylselanylmethyl)thieno[3,2-d][1,3]oxazepine   、                                                                                             tert-Butyl 5,6-dihydro-5-(phenylselanylmethyl)-4H-thieno[3,2-b]pyrrole-4-carboxylate   、                                                                                             tert-Butyl 4,5,6,7-tetrahydro-6-(phenylselanyl)thieno[3,2-b]pyridine-4-carboxylate