2-amino-1-(1,3-dioxolan-4-yl)-ethanol compounds, their...

C - Chemistry – Metallurgy – 07 – D

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C07D 317/28 (2006.01) C07D 317/34 (2006.01) C07D 317/72 (2006.01)

Patent

CA 1237726

ABSTRACT 2-Amino-1-(1,3-dioxolan-4-yl)-ethanol compounds, their preparation and use The invention relates to 2-amino-1-(1,3-dioxolan- 4-yl)-ethanol compounds of the general formula Image (I), in which R1 and R2 are the same or different and represent hydrogen, a (C1 to C4)alkyl group or a (C1 to C4)- alkoxy group with the proviso that if one represents a (C1 to C4)alkoxy group the other represents a (C1 to C4)- alkyl group or R1 and R2 together represent an alkylene radical having 5 or 6 carbon atoms, their preparation and use. The compounds of the general formula I are espe- cially suitable for preparing shadow-forming substances for use in X-ray contrast agents.

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