Methyl (1S,4aS,8aR)-4a,5,6,7,8,8a-hexahydro-1-methyl-1H-pyrano(3,4-c)pyridine-4-carboxylate

Tryptamine perchlorate

ethyl 3,4-dihydroxy-5-methyl-2-furancarboxylate

(4S)-5c-formyl-4r-methoxycarbonylmethyl-6t-methyl-5,6-dihydro-4H-pyran-3-carboxylic acid methyl ester