For the final print and online versions, the compound numbers in refs. 12 and 14 have been corrected to match the schemes and text. In addition, reagent 3 is now mentioned in the text (in the paragraph discussing Scheme 1) and in the experimental section (ref. 12).
Synthesis of a Novel Tetracyclic Pyrido[3',2':4,5]thieno[3,2-b]indole System. -(KANISHCHEVA, E. A.; VASILIN*, V. K.; KASIMOVA, D. R.; STROGANOVA, T. A.; KRAPIVIN, G. D.; Chem. Heterocycl.
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