Abstract: The invention relates to a compound having general formula I, wherein: X represents CH2, C?O, C?S or CHOH, R1 represents an amino acid optionally substituted by one or more halogen atoms, or by one or more CF3 groups and n=0.1 or 2, or R1 represents a peptide containing two amino acids, each amino acid being optionally substituted by one or more halogen atoms, or by one or more CF3 groups and n=0 or 1, or XR1 represent PO3H or SO3H and n=0.1 or 2; R2 represents H, XR1, an alkyl group at C1-C6, an aralkyl group at C1-C6 or an aryl group, whereby the alkyl, aralkyl and aryl groups can be substituted by an amine NH2, a carboxylic group COOH, one or more halogen atoms.

Abstract: The invention relates to a compound having general formula I, wherein: X represents CH2, C?O, C?S or CHOH, R1 represents an amino acid optionally substituted by one or more halogen atoms, or by one or more CF3 groups and n=0.1 or 2, or R1 represents a peptide containing two amino acids, each amino acid being optionally substituted by one or more halogen atoms, or by one or more CF3 groups and n=0 or 1, or XR1 represent PO3H or SO3H and n=0.1 or 2; R2 represents H, XR1, an alkyl group at C1-C6, an aralkyl group at C1-C6 or an aryl group, whereby the alkyl, aralkyl and aryl groups can be substituted by an amine NH2, a carboxylic group COOH, one or more halogen atoms.

Abstract: The present invention relates to the use of biguanide derivatives of general formula I below: in which: the groups R1 and R2 represent, independently of each other, a hydrogen atom, a C1–C7, alkyl group, a cycloalkyl group, a heterocycle, a C2–C7 alkenyl group, an aryl group, an aralkyl group, an aryloxyalkyl group or a heteroaryl group, or R1 and R2, taken together, represent a C2–C7 alkylene which may contain one or more hetero atoms, and the group R3 represents a primary, secondary or tertiary amine, or pharmaceutically acceptable salts thereof, to manufacture a medicinal product with cicatrizing action, the said medicinal product being in a pharmaceutical form for topical use.

Abstract: The invention relates to the use of a bigaunide derivative for protecting skin against UVB radiation harmful effects and/or for protecting skin against undesirable and/or inaesthetic effects of UVB radiation.

Abstract: The present invention relates to the use of biguanide derivatives of general, formula I below; 1