Ws. Sun et al., YUA001, a novel aldose reductase inhibitor isolated from alkalophilic Corynebacterium sp. YUA25 - II. Chemical modification and biological activity, J ANTIBIOT, 54(10), 2001, pp. 827-830
A series of novel N-substituted tyramine (2-p-hydroxyphenylethylamine) deri
vatives (1 similar to 11) were synthesized and evaluated for their inhibito
ry activity against pig kidney aldose reductase (EC 1, 1, 1, 21). Of these
compounds, N-2-p-hydroxyphenylethyl maleamic acid (10) exhibits the stronge
st aldose reductase inhibitory activity, which is 22 times more potent than
that of YUA001(1)).