The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 23 [1]. Naphtho[2′,1′:4,5] thieno[2,3-c]naphtho[2,1-f]quinoline

1. Luo, J.-K.
2. Cabal, M.-P.
3. Federspiel, R.F.
4. Castle, R.N.