(2R)-6-(Z)-benzylidene-3c,4-dimethyl-2r-phenyl-[1,4]oxazepane-5,7-dione

氧化苯乙烯

tetrahydro-2-oxo-4-phenyl-3-furancarbonitrile

苯基丁二酸

methyl 5,5-dimethoxy-3-phenylhexanoate