Hoechst Aktiengesellschaft

Gerhard Jahne

Norbert Krass

Winfried Hertzsch

Axel Hoffmann

Hans Georg Boger

Hans-Ludwig Schafer

The invention relates to 4-Amino-2-ureidopyrimidine-5-carboxamides of the formula I ##STR1## in which R.sup.1 is H or (C.sub.1 -C.sub.8)-alkyl, where one or more H can be replaced by F; R.sup.2 is selected from the group consisting of F, Cl, Br, H, -O-(C.sub.1 -C.sub.8)-alkyl, and -S-(C.sub.1 -C.sub.8)-alkyl, where the alkyl groups have one or more H replaced by F; R.sup.3 is -O-(C.sub.1 -C.sub.8)-alkyl or -S-(C.sub.1 -C.sub.8)-alkyl, where the alkyl groups have one or more H replaced by F; or R.sup.2 and R.sup.3 together form -O-(C.sub.1 -C.sub.5)-alkylene-O-, where the alkylene portion has one or more H replaced by F; and their physiologically tolerable salts. The invention further provides processes for preparing the compounds of formula I. The compounds are suitable for the treatment of disorders of lipid metabolism.

Compounds for treating disorders of lipid metabolism and their

Process for the preparation of 5-substituted cytosines and other 4,5-disubstituted pyrimidin-2(1H)-ones, and intermediates arising in the course of this The process for the preparation of compounds of the formula I, ##STR1## wherein compounds of the formula II ##STR2## are converted into an azole derivative of the formula III or an azine derivative of the formula IV ##STR3## which can subsequently be converted into a compound of the formula I using a nucleophile XH.

Process for the preparation of 5-substituted cytosines and other

Compounds of the formula ##STR1## can advantageously be prepared by reacting compounds the formula II ##STR2## in which the substituents R.sup.1 -R.sup.4 have the meanings given, with the anhydride of the formula III ##STR3## in the presence of dimethyl sulfoxide and the acid corresponding to the anhydride of the formula III.

Process for the preparation of acylals

It is possible, by using symmetrical formaldehyde acetals of the formula ##STR1## in which the substituents R.sup.1 -R.sup.3 have the specified meanings, advantageously to introduce the substituent ##STR2## into nitrogen-containing heterocyclic systems to form acyclic nucleoside analogs.

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Frankfurt am Main, Germany

Gerhard Jahne