Analogs of 2'(3')-O-L-phenylalanyladenosine as substrates and inhibitors of ribosomal peptidyltransferase
作者:Jiri Zemlicka、Aruna Bhuta、Prakash Bhuta
DOI:10.1021/jm00356a010
日期:1983.2
The chemical syntheses of 2'(3')-O-(L-3-amino-3-phenylpropionyl)adenosine (2e), the corresponding D stereoisomer 2f, 2'(3')-O-(DL-phenylglycyl)adenosine (2g), 2'(3')-O-(N-benzylglycyl)adenosine (2h), and 9(2-O-L-phenylalanyl-beta-D-xylofuranosyl)adenine (3b) are described. Compounds 2e-h were obtained by acylation of 5'-O-(4-methoxytrityl)adenosine with the appropriate N-benzyloxycarbonyl or N-tert-butoxycarbonyl
2'(3')-O-(L-3-氨基-3-苯基丙酰基)腺苷(2e),相应的D立体异构体2f,2'(3')-O-(DL-苯基甘氨酰基)腺苷的化学合成描述了(2g),2'(3')-O-(N-苄基甘氨酰基)腺苷(2h)和9(2-OL-苯丙氨酰基-β-D-木呋喃糖基)腺嘌呤(3b)。通过将5'-O-(4-甲氧基三苯甲基)腺苷与合适的N-苄氧基羰基或N-叔丁氧基羰基氨基酸与吡啶中的二环己基碳二亚胺酰化,获得化合物2e-h。N-(苄氧羰基)-D-苯基甘氨酸的相应反应导致氨酰基残基(化合物2c和2g)几乎完全消旋。随后的色谱分离和中间体2a-d的脱保护得到所需的目标衍生物2e-h。产物3b是通过类似的9-(3,将5-O-异亚丙基-β-D-呋喃呋喃糖基)腺嘌呤与N-(苄氧基羰基)-L-苯丙氨酸一起,然后脱保护。讨论了立体异构体2a和2b的2'和3'异构体的NMR光谱。化合物2g和3b都是大肠杆菌核糖体肽基转移