p. 1045 - 1050
(2007/10/02){6-Amino-5-nitro-4-[2-oxo-2-(3,4,5-trimethoxy-phenyl)-ethylamino]-pyridin-2-yl}-carbamic acid ethyl ester
[5-Amino-3-(3,4,5-trimethoxy-phenyl)-1,2-dihydro-pyrido[3,4-b]pyrazin-7-yl]-carbamic acid ethyl ester
{6-Amino-4-[2-[(Z)-hydroxyimino]-2-(3,4,5-trimethoxy-phenyl)-ethylamino]-5-nitro-pyridin-2-yl}-carbamic acid ethyl ester