C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 233/54 (2006.01) A61K 6/083 (2006.01) C07C 69/76 (2006.01) C07C 229/60 (2006.01) C07C 233/67 (2006.01) C07C 237/46 (2006.01) C08F 220/30 (2006.01)
Patent
CA 2150438
X-ray opaque esters or amides of iodosubstituted benzoic acid according to formula I and polymers and dental materials produced therefrom. Image R1 = hydrogen or C1 to C3 alkyl, preferably H or CH3; R2 = straight-chain or branched C1 to C6 alkylene, oxyalkylene or arylene, preferably C2 to C4 alkylene and particularly preferably -CH2-CH2- and -CH2CH(-)CH2-; X = O or NH, preferably O; R3-R7 = at least 3 iodine substituents, preferably in R3, R4 and R6 or R3, R5 and R7 position, the other groups are hydrogen, C1 to C6 alkyl, C1 to C6 alkoxy, -Cl, -Br, -OH, -NH2, -N(C1 to C6 alkyl)2 or -NH-CO-(C1 to C6 alkyl), preferably R3, R4, and R6 are = I and R5 and R7 - H, or R3, R5 and R7 = I and R4 and R6 = -NH(COCH3); n = 1, 2 or 3, preferably 1 or 2.
Moszner Norbert
Rheinberger Volker
Salz Ulrich
Ivoclar Ag
Ridout & Maybee Llp
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