Heteroannelation of 3,4-dihydroisoquinoline with (3H,5H)-3-acylthiophene-2,4-diones: one-stage synthesis of new heterocyclic steroid analogues, 8-aza-16-thiagonanes
Аннотация:
New 8-aza-16-thiasteroid analogues, benzo[a]thieno[f]quinolizines, have been synthesised by the [2 + 4] heteroannelation of 3,4-dihydroisoquinoline with 3-acylthiotetronic acids.