C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/525.2, 260/2
C07D 295/28 (2006.01)
Patent
CA 1138869
ABSTRACT OF THE DISCLOSURE 1. 1.3-disubstituted nitroso urea of the formula: Image wherein R1 and R2 signify a straight chain or ramified chain alkyl, which can moreover be substituted with up to 3 radicals OH, COOH, COOR or CONH2, whereby R means an alkyl group with 1 to 6 carbon atoms, or wherein R1 and R2 could be constituents of a saturated or unsaturated cyclic system, especially of a 6-membered cyclic system, which can moreover contain additional heteratoms, particularly oxygen or nitrogen, and whereby the ring can additionally be substituted with up to 3 groups OH, COOH, COOR, whereby R has the above-noted meaning, CONH2, halogen or with the ethyl chloride nitroso ureido group and halogen represents chlorine or fluorine. These compound find use as chemotherapics in the treatment of tumors.
337942
Gowling Lafleur Henderson Llp
Stiftung Deutsches Krebsforschungszentrum
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