摘要:
9-thia ergot cyclic peptide alkaloids produced by fermentation or synthetic methods have interesting anti-parkinson and other pharmacological activities.
摘要:
9-thia ergot cyclic peptide alkaloids produced by fermentation or synthetic methods have interesting anti-parkinson and other pharmacological activities.
摘要:
9-Thia ergot cyclic peptide alkaloids produced by fermentation or synthetic methods have interesting anti-parkinson and other pharmacological activities.
摘要:
A novel class of macrolides in whichi) positions 2 to 6 inclusive of the macrocyclic ring are provided by a piperidazinyl carboxylic acid residue; and/orii) positions 7 to 9 inclusive of the macrocyclic ring are provided by an aromatic .alpha.-amino acid residue; and/oriii) positions 10 to 12 inclusive of the macrocyclic ring are provided by an aliphatic .alpha.-amino acid residue, preferably comprising two, or especially all three of the characteristic structural features i), ii) and iii), more especially a compound of formula IX ##STR1## is provided having immunosuppressant and antinflammatory properties and protected and ring-open forms thereof.