p. 1285 - 1294
(2011/04/26)p. 9340 - 9352
(2009/04/07)1,4-dibutoxy-9-nitro-6(5)H-indolo<2,3-b>quinoxaline
4,7-dibutoxy-5'-nitrospiro(benzimidazoline-2,3'-indolin)-2'-one
2,2',5,5'-tetrabutoxy-6,6'-dinitroazobenzene
1,4-dibutoxy-6-methylindolo<2,3-b>quinoxaline
4,7-dibutoxy-1'-methylspiro(2H-benzimidazole-2,3'-indolin)-2'-one