4-(4-methoxy-2,3,6-trimethylphenyl)butan-2-one

acetic acid,2,2,5,7,8-pentamethyl-3,4-dihydrochromen-6-ol

6-(2-hydroxy-3,4,6-trimethylphenyl)hexanoic acid

2,2,5,7,8-pentamethyl-3,4-dihydrochromen-6-amine

阿曲汀中间体3