hydrogenchloride in water T=80°C; 4 h;

1: kaempferol 3-O-β-D-xylopyranosyl-(1→2)-α-L-rhamnopyranosyl-7-O-α-L-rhamnopyranoside With hydrogenchloride in water T=80°C; 4 h; 2: (L)-cysteine methyl ester hydrochloride With pyridine T=60°C; 1 h;

hydrogenchloride in water T=80°C; 4 h;