(Z)-2-(4,4,5,5-tetramethyl-2-oxodihydrofuran-3(2H)-ylidene)acetic acid

2,3-二甲基-2-丁烯

dimethyl-3,3,4-trimethyl-1,4-pentadiene-1,2-dicarboxylate

(3E)-dihydro-3-(iodomethylene)-4,4,5,5-tetramethyl-2(3H)-furanone

2-Bromo-2,3-dimethyl-3-[(1-methoxy-2-propyn-1-yl)oxy]butane