1,1,4,4-tetramethoxybut-2-yne

2-methoxy-2,5,7,8-tetramethyl-3,4-dihydrochromen-6-ol

1-methoxy-4-(1-methoxyethenyl)benzene

2-(2,2-dimethoxyethyl)cyclohexan-1-one

dimethyl 2-(2,2-dimethoxyethyl)propanedioate