21422-40-2Relevant articles and documents
Nucleophilic Additions to Pyridium Salts. Reduction of the Intermediate Dihydropyridines
Lavilla, Rodolfo,Gotsens, Teresa,Gullon, Francisco,Bosch, Joan
, p. 5233 - 5244 (1994)
Reduction of indolyldihydropyridines 4 and 5 satisfactorily gave the corresponding tetrahydropyridines 6 and 7.A similar reduction of 4-(2-indolylmethyl)-1,4-dihydropyridines 3 was inefficient.In contrast, dihydropyridine 19 was reduced to 23 and then cyclized to pentacycle 24.Direct cyclization of 19 resulted in the formation of imide 21.
Synthesis and in vitro antitumor activity of novel 2-alkyl-5- methoxycarbonyl-11-methyl-6H-pyrido[4,3-b]carbazol-2-ium and 2-alkylellipticin-2-ium chloride derivatives
Mori, Ryota,Kato, Asako,Komenoi, Kousuke,Kurasaki, Haruaki,Iijima, Touru,Kawagoshi, Masashi,Kiran,Takeda, Sho,Sakai, Norio,Konakahara, Takeo
, p. 16 - 35 (2014/06/09)
Twenty-one types of novel ellipticine derivatives and pyridocarbazoles (5-methoxycarbonyl-11-methyl-6H-pyrido[4,3-b]carbazoles) with a nitrosourea moiety, linked by an oxydiethylene unit at the 2 position, were synthesized, and their cytotoxicity against HeLa S-3 cells was evaluated. Some of these new compounds exhibited potent antitumor activity by comparison with that of ellipticine.
Synthesis of the Benzazepin-4-one Ring System via Dipolar Cycloaddition of N-Phenylnitrones with Activated Allenes
Padwa, Albert,Kline, Donald N.,Norman, Bryan H.
, p. 810 - 817 (2007/10/02)
The 1,3-dipolar cycloaddition of N-phenyl-C-phenylnitrone with several allenes containing electron-withdrawing groups has been investigated.The cycloaddition proceeds in good yields to give a substituted benzazepin-4-one.The structure of the cycloadduct w
SYNTHESIS OF ELLIPTICINE
Weller, Dwight D.,Ford, Douglas W.
, p. 2105 - 2108 (2007/10/02)
The 6H-pyridocarbazole system is efficiently synthesized by intramolecular attack of an ester enolate on an unactivated pyridinium salt.
Etude spectroscopique (IR, RMN1H, masse) comparee des acides indolyl-1 acetique (AIA-1) indolyl-2 acetique (AIA-2) et indolyl-3 acetique (AIA-3) et de leurs esters methyliques (masse)
Vebrel, Joel,Laude, Bernard,Seguin, Alain,Dubouchet, Jacques
, p. 887 - 894 (2007/10/02)
Spectroscopic study (i.r., PMR) of 1-indolyl, 2-indolyl and 3-indolyl acetic acids points out structural differences.Conventional mass spectra of the three acids or their methyl esters are very similar.Use of the MIKE and CID-MIKE techniques on the molecular ion allows an easy discrimination of each methylic ester of the three acids.