2,5-二甲基-3,4-二苯基环戊二烯酮

(1α,2β,3α,5α,6β,7α,8β,11β)-8,11,13-trimethyl-9,10-diphenyl-4-oxa-13-azahexacyclo(5.4.3.18,11.01,7.02,6.03,5)pentadec-9-ene-12,14,15-trione

(2R,3R,5S,6S)-9-methyl-4-oxa-9-azatetracyclo[5.3.0.02,6.03,5]dec-1(7)-ene-8,10-dione