@article{oai:soar-ir.repo.nii.ac.jp:00012665,
 author = {Kakehi,  A and Suga,  H and Goto,  Y and Yamaguchi,  N},
 journal = {HETEROCYCLES},
 month = {},
 note = {The ring contraction-desulfurization route from transient 1-(arylcarbonyl)pyridol2,1-c]-1,4-thiazine intermediates, generated in situ from the treatment of the corresponding pyridinium salts with a base and then a dehydrogenation agent, to 1-(arylcarbonyl)indolizines was first observed. By using this route three 1-arylcarbonyl-6,8-dimethylindolizines having the protected 2-thiol group were prepared and their transformation to 2-acyl-3-arylthieno[3,2-a]indolizine derivatives were performed in good yields., Article, HETEROCYCLES. 74: 521-532 (2007)},
 pages = {521--532},
 title = {First ring contraction-desulfurization of 1-(arylcarbonyl)pyrido[2,1-c]-1,4-thiazines to 1-(arylcarbonyl)indolizines and its application to 3-arylthieno[3,2-a]indolizine synthesis},
 volume = {74},
 year = {2007}
}