摘要 |
The invention relates to the use of a compound of general formula (I), wherein R1 and R2 are independently H or C1-C6 alkyl, or R1 and R2 are bound to one another forming an optionally substituted fused benzene ring, R3 is H, C1-C6 alkyl or -CH2-CH(NH2)-COOH and R4 is H, C1-C6 alkyl, or R4 represents (II) or (III) in the preparation of a medicinal product for treating and/or preventing congenital erythropoietic porphyria (CEP).
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