
TY  - JOUR
A1  - Dalton, LK 
A1  - Demerac, S 
A1  - Elmes, BC 
A1  - Loder, JW 
A1  - Swan, JM 
A1  - Teitei, T 
T1  - Synthesis of the tumour-inhibitory alkaloids, ellipticine, 9-methoxyellipticine, and related pyrido[4,3-b]carbazoles
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1967
VL  - 20
IS  - 12
SP  - 2715
EP  - 2727
KW  - 
UR  - https://doi.org/10.1071/CH9672715 
N2  - Orthophosphoric acid has been found to accomplish the previously unsuccessful cyclization of azomethines of 3-formylcarbazoles and aminoacetal to substituted pyrido[4,3-b]carbazoles according to a scheme proposed by Cranwell and Sexton. By this method, there have been prepared 6,11-dimethyl-(ellipticine), 5,6,11-trimethyl-, 5,9,11- trimethyl-, 9-methoxy-5,11-dimethyl- (9-methoxyellipticine), 9-methoxy- 5,6,11-trimethyl-, 9-bromo-6,11-dimethyl-, and 9-nitro-5,11-dimethyl- 6H-pyrido[4,3-b]carbazole. 
ER  -

