B. Danieli et al., DIELS-ALDER REACTIONS OF METHYL N-P-METHOXYBENZENSULFONYLINDOLE-2-(2-PROPENOATE), A CONVENIENT DIENOPHILE TOWARDS THE SYNTHESIS OF ANDRANGININE, Tetrahedron, 52(34), 1996, pp. 11291-11296
Methyl N-p-methoxybenzensulfonylindole-2-(2-propenoate) (2) undergoes
Diels-Alder reactions with silyloxybutadienes and 5-ethenylpyridinones
to afford advanced intermediates for the total synthesis of (+/-)-and
ranginine (1). Copyright (C) 1996 Published by Elsevier Science Ltd