11-phenyl-8-azaspiro[5.6]dodec-10-en-9-one

N-(2-phenylspiro[5.5]undec-2-en-4-ylidene)hydroxylamine

11-phenyl-8-azaspiro[5.6]dodecan-9-one

甲醛

11-phenyl-8-azaspiro[5.6]dodecane