The invention discloses Fmoc protected (2S)-2-amino-8-[(1,1- dimethylethoxy)amino]-8-oxo-octanoic acid, (S)-2-amino-8- oxononanoic acid and (S)-2-amino-8-oxodecanoic acid for use in peptide synthesis, such as solid phase synthesis, as well as the peptide H3K27 (Ac-Lys-Ala-Ala-Arg-Aox-Ser-Ala-NH2) prepared from Fmoc protected (2S)-2-amino-8-[(1,1-dimethylethoxy)amino]-8-oxo-octanoic acid (Aox). These three exemplary compounds as well as their unprotected forms are claimed in the form of four generic formulae. The first of these four formulae is (formula (I)) where -NPro is a protected amino group, such as an amino group protected with a base-labile protecting group, -L- is alkylene, heteroalkylene, arylene or aralkylene, -X- is a covalent bond, -N(H) - or -N(RN)-, where -RN is alkyl, -R2 is hydrogen or alkyl, -R3 is alkyl, such as C2-10 alkyl, or heterocyclyl, and -LAA- and -R1 are as defined in the claims.
该发明揭示了用于肽合成的Fmoc保护(2S)-2-
氨基-8-[(
1,1-二甲基乙氧基)
氨基]-8-氧代
辛酸、(S)-2-
氨基-
8-氧代壬酸和(S)-2-
氨基-
8-氧代癸酸,例如固相合成,以及从Fmoc保护的(2S)-2-
氨基-8-[(
1,1-二甲基乙氧基)
氨基]-8-氧代
辛酸(Aox)制备的肽H3K27(Ac-Lys-A
LA-A
LA-Arg-Aox-Ser-A
LA-NH2)。这三种示范性化合物及其未保护形式以四种通用式的形式声明。这四种式中的第一种式(式(I))是其中-NPro是受保护的
氨基基团,例如用碱敏感保护基保护的
氨基基团,-L-是烷基,杂原子烷基,芳基或芳基烷基,-X-是共价键,-N(H)-或-N(RN)-,其中-RN是烷基,-R2是氢或烷基,-R3是烷基,例如C2-10烷基,或杂环烷基,-
LAA-和-R1如索引中所定义。