Results 101 to 109 of about 255 (109)

Recent Advances on Antitumor-active Benzo[c]phenanthridine Alkaloids

HETEROCYCLES, 1999
Tsutomu Ishikawa, Hisashi Ishii
openaire   +1 more source

Some aspects of the chemistry of quaternary benzo[c]phenanthridine alkaloids

2002
Abstract Quaternary benzo[ c ]phenanthridine alkaloids (QBA)are a relatively small class of natural products. These isoquinoline-derived alkaloids are conspicuous for their bright colours. They currently number 18, apart from evident artifacts and synthetic derivatives.
openaire   +1 more source

Enamide Photocyclization in the Synthesis of Benzo[c]phenanthridine Alkaloids

HETEROCYCLES, 1977
Ichiya Ninomiya, Okiko Yamamoto, Toshiko Kiguchi, Takeaki Naito, Hisashi Ishii   +4 more
openaire   +1 more source

Photocyclization of the N-benzoylenamines of α-tetralone to benzo(c)phenanthridines

Tetrahedron Letters, 1969
I, Ninomiya, T, Naito, T, Mori
openaire   +2 more sources

Synthetic Studies on Benzo[c]phenanthridine Alkaloids and Related Compounds

Journal of Synthetic Organic Chemistry, Japan, 2012
openaire   +1 more source

NMR structural analysis of benzo[c]phenanthridine alkaloids

1999
Marek, R., Toušek, J., Dostál, J., Slavík, J., Dommisse, Roger, Sklenár, V.   +5 more
openaire   +1 more source

Synthesis of Quaternary Benzo[c]phenanthridine Alkaloids and Their Analogues

1996
Simon P. Mackay, Otto Meth-Cohn, Roger D. Waigh   +2 more
openaire   +1 more source

Biomimetic Synthesis of Benzo[C]Phenanthridine Alkaloids from Protoberberines

1994
openaire   +1 more source

1,2-Dihydroisoquinolines—V. A simple benzo C phenanthridine ring synthesis

Tetrahedron, 1968
openaire   +1 more source