摘要:
The present invention relates to a method for the commercial mass production of t-butyl (2,2-dimethyl-6-hydroxymethyl-[1,3]dioxane-4-yl) acetate having an optical activity, which is a core intermediate in the preparation of a variety of HMG-CoA reductase inhibitors, and to novel intermediates for the same. According to the preparation method of the present invention, t-butyl (2,2-dimethyl-6-hydroxymethyl-[1,3]dioxane-4-yl) acetate having an optical activity can be prepared in an economically advantageous and effective manner.
摘要:
The present invention relates to a method for preparing t-butyl 2-((4R,6S)-6-formyl-2,2-dimethyl-1,3-dioxan-4-yl)acetate having optical activity, which is a core intermediate in the preparation of a variety of HMG-CoA reductase inhibitors. According to the preparation method of the present invention, it is possible to easily mass-produce t-butyl 2-((4R,6S)-6-formyl-2,2-dimethyl-1,3-dioxan-4-yl)acetate in the form of a solid of high and uniform purity by using a polymer-supported TEMPO.
摘要:
The present invention relates to a method for preparing a variety of commercial-scale histidyl-prolinamide derivatives in an economical and effective manner using a polymer solid phase support. The method of the present invention prepares a variety of high purity histidyl-prolinamide derivatives under mild conditions using a polymer solid phase support and amino acid derivatives containing a variety of protection groups through simple preparation and refining processes.