The present invention relates to processes for preparing the compounds of general formula I, wherein the groups R.sup.1, R.sup.2 and R.sup.3 are defined according to claim 1 and to intermediates of said processes.

 
Web www.patentalert.com

> METHOD AND APPARATUS FOR NUCLEIC PURIFICATION USING ION-PERMEABLE POLYMER-COATED ELECTRODE

~ 00335