Syntheses of Peptide Alkaloids, VII. - Amino Acids and Peptides, XXXVIII. - Total Synthesis of the 10,11-Dihydrozizyphines A and B
The 10,11-dihydrozizyphines A (13a) and B (15a) were synthesized.The cyclopeptide ring closure reactions were accomplished by catalytic hydrogenation of the linear ω-Z-amino acid pentafluorophenyl ester 8a.
Schmidt, Ulrich,Boekens, Hilmar,Lieberknecht, Albrecht,Griesser, Helmut
p. 1459 - 1467
(2007/10/02)
SYNTHESIS OF PEPTIDE ALKALOIDS-III. AMINO ACIDS AND PEPTIDES-XXXII. SYNTHESIS OF DIHYDRO-ZIZYPHINE A AND B
Recently we described a new cyclisation method for the synthesis of ansa peptides by hydrogenolysis of Z-pentafluorophenyl ester and ring closure on the surface of the palladium catalyst.We applied this reaction to the synthesis of the 14-membered ansa pe
Schmidt, Ulrich,Boekens, Hilmar,Lieberknecht, Albrecht,Griesser, Helmut
p. 4949 - 4952
(2007/10/02)
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