1-[2-(3,4-dimethoxyphenyl)ethyl]-1H-pyrrole

6,7-dimethoxy-1-(3-trimethylsilylprop-2-ynyl)-1,2,3,4-tetrahydroisoquinoline

t-butyl-2-[4,5-dimethoxy-2-(4-oxobutanoyl)phenyl]-ethylcarbamate

6,7-dimethoxy-1-(1-trimethylsilylpropan-1,2-dienyl)-1,2,3,4-tetrahydroisoquinoline

Crispine A