Collect. Czech. Chem. Commun.
1978, 43, 471-497
https://doi.org/10.1135/cccc19780471
Synthesis of 2-acetyl and 3-acetyl derivatives of 8-chloro-10-(4-methylpiperazino)-10,11-dihydrodibenzo[b,f]-thiepin; 2-Acyl-7-substituted thioxanthenes
Karel Šindelář, Jiří O. Jílek, Josef Pomykáček, Zdeněk Šedivý and Miroslav Protiva