Accepted Manuscript Modifications of 5,12-dihydroindolo[3,2-a]carbazole scaffold via its regioselective C2,9-formylation and C2,9-acetylation Nikita A. Kazin, Nadezhda S. Demina, Roman A. Irgashev, Ekaterina F. Zhilina, Gennady L. Rusinov PII: S0040-4020(19)30757-4 DOI: https://doi.org/10.1016/j.tet.2019.07.015 Reference: TET 30457 To appear in: Tetrahedron Received Date: 31 May 2019 Revised Date: 3 July 2019 Accepted Date: 8 July 2019 Please cite this article as: Kazin NA, Demina NS, Irgashev RA, Zhilina EF, Rusinov GL, Modifications of 5,12-dihydroindolo[3,2-a]carbazole scaffold via its regioselective C2,9-formylation and C2,9-acetylation, Tetrahedron (2019), doi: https://doi.org/10.1016/j.tet.2019.07.015. This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.