Synthesis of (<i>S</i>)-3-heteroaryl-2-hydroxy-l-propyl benzoates by ‘ring switching’ methodology
作者:Damjana Mihelič、Renata Jakše、Jurij Svete、Branko Stanovnik、Simona GoliČ Grdadolnik
DOI:10.1002/jhet.5570380610
日期:2001.11
(S)-5-Benzoyloxymethyl-3-[(E)-(dimethylamino)methylidene]tetrahydrofuran-2-one (6), prepared in 5 steps from L-glutamic acid (1), was used as precursor in a one step ‘ring switching’ synthesis of (S)-2-hydroxy-3-heteroaryl-l-propyl benzoates 13-18, 23, 24. In the reaction of 6 with 2-aminopyridine (21) and 2-amino-4,6-dimethylpyrimidine (22) the corresponding dimethylamine substitution products (25
由L-谷氨酸(1)分5步制备的(S)-5-苯甲酰氧基甲基-3-[(E)-(二甲基氨基)亚甲基]四氢呋喃-2-酮(6)在一步中用作前体(S)-2-羟基-3-杂芳基-1-丙基苯甲酸酯的“环交换”合成13-18,23,24.在6与2-氨基吡啶(21)和2-氨基-4,6的反应中-二甲基嘧啶(22),得到相应的二甲胺取代产物(25、26)。