摘要:
The invention relates to compounds of the formula I ##STR1## in which n is 1, 2 or 3,Z.sup.1 and Z.sup.2, and Z.sup.3 and Z.sup.4, in each case together represent a chemical bond orZ.sup.1, Z.sup.2, Z.sup.3 and Z.sup.4 in each case represent hydrogen,Z.sup.1 and Z.sup.2 being in the cis configuration relative to one another and the COR.sup.1 group on C atom 3 being in the endo configuration relative to the bicyclic ring system,R.sup.1 denotes hydroxyl, alkoxy, aralkoxy, amino, alkylamino or dialkylamino andR.sup.2 denotes hydrogen, alkyl, aryl, aralkyl, cycloalkyl or alkylcycloalkyl,processes for their preparation and their use.
摘要:
The invention relates to compounds of the formula I ##STR1## in which n is 1, 2 or 3,Z.sup.1 and Z.sup.2, and Z.sup.3 and Z.sup.4, in each case together represent a chemical bond orZ.sup.1, Z.sup.2, Z.sup.3 and Z.sup.4 in each case represent hydrogen,Z.sup.1 and Z.sup.2 being in the cis configuration relative to one another and the COR.sup.1 group on C atom 3 being in the endo configuration relative to the bicyclic ring system,R.sup.1 denotes hydroxyl, alkoxy, aralkoxy, amino, alkylamino or dialkylamino andR.sup.2 denotes hydrogen, alkyl, aryl, aralkyl, cycloalkyl or alkylcycloalkyl,processes for their preparation and their use.
摘要:
2-Acylamino-6-halopurine can be prepared by halogenation of 2,9-diacylguanine (2-acylamino-6-oxo-9-acylpurine) with phosphorus oxychloride or phosphorus oxybromide in the presence of a base and of a salt with subsequent hydrolysis of the reaction product.
摘要:
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.