?
5-hydroxy vanillin --------> 3,4,5-trimethoxybenzaldehyde

?
3,4,5-trimethoxybenzaldehyde --------------> MMDA

?
3,4,5-trimethoxybenzaldehyde ----------------> mescaline

vanillin. vanilla extract?. eugenol miscible with alcohol. steem distill clove for eugenol. react to get vanillin.