The present invention relates to a process for preparing C7 intermediates and their use in the preparation of pyrrole derivatives of a class that is effective at inhibiting the biosynthesis of cholesterol in humans, and more particularly to improved synthetic methods for preparing 3,5-dihydroxy-7-pyrrol-1-yl heptanoic acids. The invention further relates to intermediates in this process.
                            本发明涉及一种制备C7中间体并在制备对人体
胆固醇生物合成具有效抑制作用的
吡咯类衍
生物中的应用的方法,更具体地涉及用于制备3,5-二羟基-7-
吡咯-1-基
庚酸的改进合成方法。该发明还涉及该过程中的中间体。