Synthesis of thieno[2,3-d]thia[1]pyrano[4,3-b]pyrrole derivatives |
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Authors: | L N Borisova T A Kartashova |
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Institution: | (1) Scientific-Research Institute of Pharmacology, Academy of Medical Sciences of the USSR, 125315 Moscow |
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Abstract: | It is shown that 2-methyl-3-carbethoxy-4H,8H,5,6-dihydrothieno2,3-d]thia1]pyrano 4,3-b]pyrrole and 8-methyl-9-carbethoxy-10H,5,6-dihydrothieno2,3-d]thia1]chromeno4,3-b]pyrrole and their S,S-dioxides, respectively, are obtained in the reaction of 2-methyl-3-carbethoxy-4-thienylhydrazine with tetrahydro-4-thiopyrone, tetrahydro-4-thiopyrone S, S-dioxide, 4-thiochromanone, and 4-thiochromanone S,S-dioxide in the presence of an acid catalyst.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 2, pp. 195–196, February, 1979. |
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