Process for the preparation of 6-¬3,6-dihydro-1(2h)-...

Details Process for the preparation of 6-¬3,6-dihydro-1(2h)-... Process for the preparation of 6-¬3,6-dihydro-1(2h)-...

C - Chemistry, Metallurgy

07

D

260/262.5

C07D 401/04 (2006.01) C07D 211/70 (2006.01) C07D 239/48 (2006.01) C07D 239/50 (2006.01) C07D 498/04 (2006.01)

Patent

CA 1179344

RAN 4019/87 Abstract The intermediates of the formula Image I wherein R1 signifies lower alkyl or lower alkoxy-lower alkyl, R2 signifies hydrogen or -COOR3 and R3 signifies lower alkyl or lower alkoxy-lower alkyl, which are important for the manufacture of therapeutically valuable 1,2,5,6-tetrahydropyridyl-substituted 2-oxo-2H- -[1,2,4]oxadiazolopyrimidinecarbamates, are obtained by reacting the corresponding arylsulphonyloxy- or alkyl- sulphonyloxy-substituted derivatives with 1,2,5,6-tetra- hydropyridine.

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