Arioli, FedericaPérez Bosch, MariaSubrizi, FabianaLlor Brunés, NúriaBosch Cartes, JoanAmat Tusón, Mercedes2016-06-032016-06-032014-08-150022-3263https://hdl.handle.net/2445/99223After the structure originally proposed for nitraraine was shown to be incorrect by total synthesis, the alternative structure 5 was recently suggested for the alkaloid on biosynthetic grounds and by comparison with the (1)H NMR data of tangutorine. The unambiguous synthesis of 5 is reported from tryptophanol and ketodiester 6, via oxazoloquinolone lactam 7. However, the melting point and (1)H NMR data of 5 did not match those reported for the natural product.6 p.application/pdfeng(c) American Chemical Society , 2014AlcaloidesSíntesi orgànicaLactamesCompostos heterocíclicsTriptòfanAlkaloidsOrganic synthesisLactamsHeterocyclic compoundsTryptophaninfo:eu-repo/semantics/article6432232016-06-03info:eu-repo/semantics/openAccess25019615