[EN] RADIOLABELED FLUORINE DERIVATIVES OF METHIONINE<br/>[FR] DÉRIVÉS DE LA MÉTHIONINE RADIOMARQUÉS AU FLUOR
申请人:CRC FOR BIOMEDICAL IMAGING DEV
公开号:WO2010108210A1
公开(公告)日:2010-09-30
The invention provides compound which is an 18F-radiolabelled S-propylhomocysteine or a derivative thereof. The compound has an enantiomeric purity of at least about 90%. 18F- radiolabelled S-propylhomocysteine may be made by treating an N-protected ester of a substituted S-propylhomocysteine with a complexed F" salt in the presence of a base to form a protected product and then deprotecting the protected product to form the 18F- radiolabelled S-propylhomocysteine. In this method the N-protected ester has a leaving group on the S-propyl group and has an enantiomeric purity of at least about 90%. The base should be such that it does not cause racemisation of the protected product.
该发明提供了一种18F-放射标记的S-丙基同型半胱氨酸化合物或其衍生物。该化合物的对映纯度至少为约90%。18F-放射标记的S-丙基同型半胱氨酸可以通过处理取代的S-丙基同型半胱氨酸的N-保护酯与复合F"盐在碱存在下形成保护产物,然后去保护产物以形成18F-放射标记的S-丙基同型半胱氨酸来制备。在这种方法中,N-保护酯在S-丙基基团上有一个离去基团,并且其对映纯度至少为约90%。碱应该是不会导致保护产物发生外消旋的碱。