pentaacetylglycyrrhizinic acid trichloride 、
C.I.酸性橙108 在
三乙胺 作用下,
以
苯 为溶剂,
反应 1.0h,
以52%的产率得到3-Acetoxy-2-[(2-hydroxyethyl)carbamoyl]-6-({11-[(2-hydroxyethyl)carbamoyl]-4,4,6a,6b,8a,11,14b-heptamethyl-14-oxo-1,2,3,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,14,14a,14b-icosahydro-3-picenyl}oxy)-5-({4,
5,6-triacetoxy-2-[(2-hydroxyethyl)carbamoyl]tetrahydro-2H-pyran-3-yl}oxy)tetrahydro-2H-pyran-4-yl acetate