Peptide purification
    2.
    发明授权
    Peptide purification 失效
    肽纯化

    公开(公告)号:US07057014B2

    公开(公告)日:2006-06-06

    申请号:US10500302

    申请日:2002-12-23

    CPC classification number: C07K7/06 C07K1/30

    Abstract: A nona- or decapeptide is purified from residual organic solvent by dissolving in a solvent comprising water and at least one C1–C3 alcohol followed by precipitation into a vigorously stirred solvent consisting of an alkyl ester of a carboxylic acid, the ester comprising from 3 to 6 carbon atoms, and one or several non-polar compounds selected from hexane, heptane, octane, cyclohexane, methylcyclohexane, and, optionally, of up to 5% of acetic or propionic acid, isolating the precipitated nona- or decapeptide, followed by washing with a mixture of C3–C5 esters and drying, with the provisio that the water content of the solvent comprising water and the at least one alcohol is below 8% (v/v), and that the volume ratio of the dissolution solvent mixture and the precipitation solvent mixture is 1:10 or higher. Also described is the monoacetate of Ac-D-2Nal-D-4ClPhe-D-3Pal-Ser-MeTyr-D-Asn-Leu-Lys(iPr)-Pro-D-Ala-NH2.

    Abstract translation: 通过将溶解在包含水和至少一种C 1 -C 3 - 醇的溶剂中,然后沉淀到剧烈搅拌的溶剂中,从残留的有机溶剂中纯化非肽或十肽 由羧酸的烷基酯,包含3至6个碳原子的酯和选自己烷,庚烷,辛烷,环己烷,甲基环己烷中的一种或几种非极性化合物,和任选地至多5% 乙酸或丙酸,分离沉淀的非 - 或十肽,然后用C 3 -C 5 - 酯的混合物洗涤并干燥,条件是水含量 包含水和至少一种醇的溶剂的含量低于8%(v / v),溶解溶剂混合物和沉淀溶剂混合物的体积比为1:10或更高。 还描述了Ac-D-2Nal-D-4ClPhe-D-3Pal-Ser-MeTyr-D-Asn-Leu-Lys(iPr)-Pro-D-Ala-NH 2 。

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