9.
    发明专利
    未知

    公开(公告)号:DE3783254D1

    公开(公告)日:1993-02-11

    申请号:DE3783254

    申请日:1987-04-08

    Applicant: HOECHST AG

    Abstract: Peptide derivs. of formula (I) and their salts are new DIS-D-Ala-Pro-R (I) R = Gly-OH or NH2; DIS = 5-dimethylamino-naphthalene-1-sulphonyl. Intermediates of formula (II) are also new. Determn. of peptidylglycine alpha-amidating monooxygenase (PSM) is effected by incubating a soln. of (I; R = Gly-OH) with the test sample and measuringthe amt. of (I; R = NH2) formed. Prepn. comprises reacting (a) H-D-Ala-Pro-NH2 with DIS-Hal to give (I), (R = NH2); (Hal = halogen); (b) H-D-Ala-Pro-Gly-R2 (II) with (i) DIS-Hal and (ii) deprotecting to give (I) (R = Gly-OH), (R2 is a carboxy-protecting gp.).

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