Title of article :
The design of efficient and selective routes to pyridyl analogues of 3-oxo-3,4-dihydro-2H-1,4-(benzothiazine or benzoxazine)-6-carbaldehydes
Author/Authors :
Brooks، نويسنده , , Gerald and Dabbs، نويسنده , , Steven and Davies، نويسنده , , David T. and Hennessy، نويسنده , , Alan J. and Jones، نويسنده , , Graham E. and Markwell، نويسنده , , Roger E. and Miles، نويسنده , , Timothy J. and Owston، نويسنده , , Nathan A. and Pearson، نويسنده , , Neil D. and Peng، نويسنده , , Tony W.، نويسنده ,
Abstract :
This Letter describes the synthesis of challenging pyridyl analogues of 3-oxo-3,4-dihydro-2H-1,4-(benzothiazine or benzoxazine)-6-carbaldehydes. The six different routes described are high yielding, contain no major purification issues and have been used to give gram quantities of each aldehyde.
