Synthesis of the Angiotensin-Converting Enzyme Inhibitors (−)-A58365A and (−)-A58365B from a Common Intermediate
作者:Derrick L. J. Clive、Don M. Coltart、Yuanxi Zhou
DOI:10.1021/jo9822941
日期:1999.3.1
(-)-A58365A (1) and (-)-A58365B (2), which are inhibitors of angiotensin-converting enzyme, were synthesized from the subunits 9 and 10. These were coupled, and the resulting individual amides 17a,b were converted by ozonolysis into aldehydes 18a,b, which underwent cyclodehydration to the enamides 19a,b. Treatment with a stannane served to generate the vinyl stannanes 20a,b, from which ketones 22a
由亚基9和10合成了血管紧张素转化酶抑制剂(-)-A58365A(1)和(-)-A58365B(2),它们被偶联,并且将得到的各个酰胺17a,b转化。通过臭氧分解成醛18a,b,然后进行环脱水成酰胺19a,b。用锡烷处理有助于产生乙烯基锡烷20a,b,通过原甲酸酯化和臭氧分解从中产生酮22a,b。然后进行碱处理和氢解,得到(-)-A58365A(1)。中间体17a,b也通过硼氢化和氧化转化为醛26a,b,然后应用与(-)-A58365A相似的序列,以完成同类物(-)-的第一对映体特异性合成。 A58365B(2)。