| 摘要 |
The invention discloses particularly compounds of formula (I) in which : X1 is a hydrogen atom, a Gly residu or an N-protective group, and X2 is a hydroxy group, a Ser residu, a Ser-Pro or Ser-Pro-Cys group or a group of formula (II), in which R1 and R2 are independently a C1-C18 alkyl group, a C3-C8 cycloalkyl group, an aryl(C1-C4)alkyl group, and R1 may be H, or R1 et R2 together and with the nitrogen atom to which they are fixed form a pyrrolidino, piperidino or piperazinyl group optionally substituted by a C1-C4 alkyl radical or a 4-hydroxypiperidino group, or one of its addition salts with a pharmaceutical acceptable acid, used for the preparation of a secondary cataract prevention drug.
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