The present invention relates to a method of preparing BCH-189 and various analogues of BCH-189 from inexpensive precursors with the option of introducing functionality as needed. This synthetic route allows the stereoselective preparation of the biologically active isomer of these compounds, β-BCH-189 and related compounds. Furthermore, the stereochemistry at the nucleoside 4'-position can be controlled to produce enantiomerically-enriched β-BCH-189 and its analogues.
本发明涉及一种利用廉价前体制备 BCH-189 和 BCH-189 各种类似物的方法,并可根据需要引入官能团。这种合成路线可以立体选择性地制备这些化合物的
生物活性异构体--β-BCH-189 和相关化合物。此外,还可以控制核苷 4'- 位的立体
化学,从而制备出对映体丰富的 β-BCH-189 及其类似物。