6,6-二甲基-6,7-二氢-1-苯并呋喃-4(5H)-酮

(9ci)-4,4-二甲基-1-环戊烯-1-羰酰氯

6,6-dimethyl-2-phenyl-2,3,5,7-tetrahydro-1-benzofuran-4-one

6,6-dimethyl-3-phenyl-5,7-dihydrocyclopenta[e][1,3]oxazine-2,4-dione

6,6-dimethyl-3-phenyl-2-phenylimino-5,7-dihydrocyclopenta[e][1,3]oxazin-4-one