TY - JOUR AU - Schuster, Ildikó AU - Sztojkov-Ivanov, Anita AU - Lázár, László AU - Fülöp, Ferenc TI - Synthesis of 1,2,3,4-tetrahydroisoquinoline-1-carboxylic Acid Derivatives Via Ugi Reactions JF - LETTERS IN ORGANIC CHEMISTRY J2 - LETT ORG CHEM VL - 4 PY - 2007 IS - 2 SP - 102 EP - 108 PG - 7 SN - 1570-1786 DO - 10.2174/157017807780414226 UR - https://m2.mtmt.hu/api/publication/1083281 ID - 1083281 N1 - Univ Szeged, Inst Pharmaceut Chem, H-6701 Szeged, Hungary. AB - The three-component Ugi reactions of 3,4-dihydroisoquinolines, isocyanides and acids furnished 2-acyl-N-substituted-1,2,3,4-tetrahydroisoquinoline-1-carboxamides in moderate to good yields. Chiral, nonracemic acids induced only poor diastercoselectivities in the condensations. Hydrolysis of the Ugi carboxamides gave the corresponding 1,2,3,4-tetrahydroisoquinoline-1-carboxylic acids, which due to their ready ability to undergo racemization, were obtained as racemic mixtures or with low enantiomeric excesses. LA - English DB - MTMT ER -