T-Butyloxy-carbonyl-D-phenylalanyl-L-prolyl-L-arginine aldehyde hemisulfate, D-phenylalanyl-L-prolyl-L-arginine aldehyde sulfate and process for the preparation thereof
Abstract
Abstract The invention relates to t-butyloxy-carbonyl-D-phenylalanyl-L-prolyl-L-arginine aldehyde hemisulfate and D-phenylalanyl-L-prolyl-L-arginine aldehyde sulfate, which is highly stable in aqueous solution, and to a process for preparing D-phenylalanyl-L-prolyl-L-arginine aldehyde sulfate from D-phenylalanyl-L-prolyl-L-arginine aldehyde hemisulfate or NG-carboxy derivative containing an acid-sensitive protecting group at its amino terminal, wherein the acid sensitive amino terminal protecting group or optionally the NG-carboxy group is removed with 1 to 12 N sulfuric acid, applied in 1 to 12 equivalent amounts and the resulting free tripeptide aldehyde sulfate isolated. The D-phenylalanyl-L-prolyl-L-arginine aldehyde sulfate of the invention possesses valuable anti-coagulant activity.
Inventors
- 👤 Sandor Bajusz
- 👤 Erzsebet Szell nee Hasenohrl
- 👤 Eva Barabas
- 👤 Daniel Bagdy
Bibliographic Details
Claims Analysis
Total Claims: 2References Cited (Backward Citations)
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