Abstract
| - We have synthesized novel heterocyclic compounds from resin-bound guanidines. For this purpose,an amine immobilized on a solid support was acylated with protected amino acids. Following thedeprotection, the liberated amines were guanidinylated utilizing a new member of the family ofdiurethane-protected triflyl guanidine reagents, N,N‘-bis(allyloxycarbonyl)-N‘ ‘-triflylguanidine. Thedeprotected guanidines were subsequently regioselectively cyclized with β-keto esters yielding novelcompounds containing heterocyclic structures in high purities.
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