(S)-2-(benzyloxy)-3-methoxy-6-((5,6,7,8-tetrahydro-[1,3]dioxolo[4,5-g]isoquinolin-5-yl)methyl)benzyl acetate

(R)-6-((6-(benzyloxy)-7-methoxy-1,2,3,4-tetrahydroisoquinolin-1-yl)methyl)-2,3-dimethoxybenzyl acetate

(R)-2-(benzyloxy)-6-((6-(benzyloxy)-7-methoxy-1,2,3,4-tetrahydroisoquinolin-1-yl)methyl)-3-methoxybenzyl acetate

(S)-tetrahydropalmatrubine