3-[4-bromobenzyl]-2-n-butyl-1,3-diazaspiro[4.4]non-1-en-4-one

2-(2-thienyl)-3-[2'-(1-trityl-1H-tetrazol-5-yl)-biphenyl-4-ylmethyl]-1,3-diazaspiro[4.4]non-1-en-4-one

N-戊酰基氨基环戊烷-1-羧酸

1-(2'-(1-trityl-1H-tetrazol-5-yl)biphenyl-4-yl)methanamine

1-戊酰胺环戊烷羧酰胺