作者:Andrea Vasella、Robert Voeffray、Janos Pless、Ren� Huguenin
DOI:10.1002/hlca.19830660424
日期:1983.6.15
obtained from the corresponding N-ribosyl-nitrone 24. Two protected dipeptides containing either C-terminal- (28) or N-terminal-5-oxaproline (= Opro) (30) were synthesized. Starting from 12, the analogue 1 of captopril® (2) was prepared and its activity as an inhibitor of the angiotensin-converting-enzyme (ACE) was examined.
所述的1,3-偶极环加成Ç -吨丁氧基羰基-N-甘露糖基-硝酮5,形成在原位从部分保护的d甘露糖肟3和乙醛酸4,以乙烯优先得到(3小号) - N-糖基-异恶唑烷6,其被转化成3-异恶唑烷-羧酸盐(L-5-氧杂脯氨酸酯)12及其一些衍生物。通过与L-天冬酰胺衍生物的化学相关性证明了12的(S)-构型。D-5-氧脯氨酸酯是从相应的N-核糖基硝酮24。合成了两个含有C-末端-(28)或N-末端5-氧杂脯氨酸(= Opro)(30)的被保护的二肽。从12开始,制备了captopril®(2)的类似物1,并检查了其作为血管紧张素转化酶(ACE)抑制剂的活性。