@article{oai:soar-ir.repo.nii.ac.jp:00012583, author = {Isawa, H and Suga, H and Kakehi, A}, issue = {2}, journal = {HETEROCYCLES}, month = {Feb}, note = {The reactions of potassium 1,3-bis(ethoxycarbonyl)indolizine-2-thiolates with ethyl 4-bromocrotonate afforded the corresponding indolizine derivatives having (E)-(3-ethoxycarbonyl-2-propenyl)thio, (E)- and (Z)-(3-ethoxycarbonyl-1-propenyl)thio group at the 2-position. The alkaline treatment of these S-alkylated indolizines gave the title compounds in good yields., Article, HETEROCYCLES. 78(2): 319-324 (2009)}, pages = {319--324}, title = {FIRST FORMATION OF THIEPINO[2,3-b]- AND THIEPINO[3,2-a]-INDOLIZINE DERIVATIVES}, volume = {78}, year = {2009} }