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    • 2. 发明专利
    • DK172712B1
    • 1999-06-14
    • DK447786
    • 1986-09-18
    • HOECHST AG
    • GRAU ULRICH
    • C07K1/30C07K1/107C07K1/113C07K14/575C07K14/62C07K14/625
    • PCT No. PCT/EP86/00008 Sec. 371 Date Sep. 2, 1986 Sec. 102(e) Date Sep. 2, 1986 PCT Filed Jan. 11, 1986 PCT Pub. No. WO86/04335 PCT Pub. Date Jul. 31, 1986.A process for the preparation of insulin precursors of the formula (I) (I) in which R is hydrogen or the presequence Pm-Qn-, in which P is a sequence of naturally occurring amino acids with m being from 0 to 50, Q are basic natural amino acids, and n is an integer from 1 to 4, Y represents -LysB29-ZB30-, in which Z denotes Ala, Thr or Ser, and the bridge extending from A-1 to A-21 is an insulin A-chain, the bridge extending from B-1 to B-30 represents an insulin B-chain, and X is a bridge which is bonded to the insulin A-chain at the amino group of A-1 and is bonded to the insulin B-chain at the epsilon -amino group of B-29- in which case it is bonded to the free bond of ZB30OH- or at the carboxyl group of B-30, from reaction mixtures which result from folding of insulin precursors from S-sulfonates of the formula (II) (II) in which R, X and Y have the abovementioned meanings, which comprises the false recombinants contained in the reaction mixture being precipitated by adjustment of the reaction mixture to pH 4 to 6, the precipitate being removed in customary manner and converted by sulfitolysis into the S-sulfonate of the formula (II), and the latter then being subjected to renewed folding.
    • 7. 发明专利
    • NO167207B
    • 1991-07-08
    • NO843048
    • 1984-07-27
    • HOECHST AG
    • GRAU ULRICH
    • A61K38/28A61K38/00C07K14/575C07K14/62C07K7/40C07K1/02
    • 1. Claims (for the Contracting States : BE, CH, DE, FR, GB, IT, LI, LU, NL, SE) Process for the preparation of suspensions of uniformly shaped crystals having a substantially homogeneous size distribution, in particular prisms about 10 mu m in size, of one or more insulin derivatives of the formula I see diagramm : EP0133285,P10,F1 in which R**1 denotes H or H-Phe, R**30 represents the residue of a neutral, genetically encodable L-amino acid and R**31 represents a physiologically tolerated organic group which is basic in character and has up to 50 C atoms, and in whose structure 0 to 3 alpha-amino acids and involved, and whose terminal carboxyl group, which is present where appropriate, can be in the free form, or in the form of an ester group, an amide group, a lactone or reduced to CH2 OH, having an isoelectric point between 5.8 and 8.5, characterized in that the crystallization is carried out in an aqueous medium in the neighbourhood of the isoelectric point of the derivative(s) in the presence of glycerol as tonicizing agent and at least one phenol. 1. Claims (for the Contracting State AT) Process for the preparation of suspensions of uniformly shaped crystals having a substantially homogeneous size distribution, in particular prisms about 10 mu m in size, of one or more insulin derivatives of the formula I see diagramm : EP0133285,P11,F1 in which R**1 denotes H or H-Phe, R**30 represents the residue of a neutral, genetically endocable L-amino acid and R**31 represents a physiologically tolerated organic group which is basic in character and has up to 50 C atoms, and in whose structure 0 to 3 alpha-amino acids are involved, and whose terminal carboxyl group, which is present where appropriate, can be in the free form, or in the form of an ester group, an amide group, a lactone or reduced to CH2 OH, having an isoelectric point between 5.8 and 8.5, characterized in that the crystallization is carried out in an aqueous medium in the neighbourhood of the isoelectric point of the derivative(s) in the presence of glycerol as tonicizing agent and at least one phenol.