66449-58-9Relevant academic research and scientific papers
Synthesis of tripeptides containing heterocyclic α -amino acids by using heterospirocyclic 3-amino-2H-azirines
Str?ssler, Christoph,Linden, Anthony,Heimgartner, Heinz
, p. 333 - 354 (2019/04/26)
By using the 'azirine/oxazolone method', di- and tripeptides containing six-membered heterocyclic 4-amino-4-carboxylic acids with a piperidine, tetrahydropyran or tetrahydrothiopyran ring have been synthesized. It has been shown that the corresponding het
Synthesis of endothiopeptides and their cyclization to 1,3-thiazol- 5(4H)-imines
Lehmann, Juerg,Heimgartner, Heinz
, p. 1899 - 1915 (2007/10/03)
Further investigations of the synthesis of endothio analogues of the segment 1-10 (8) of an apolar analogon of zervamicin IIA are described. The endothiodecapeptide Boc-Trp-Ile-Ala-Aib-Ile-Val-Aib-Leu-Aib-Ψ(CS)-Pro-OMe (10) has been prepared in good yield
Efficient synthesis of alamethicin F-30 using a chloro imidazolidium coupling reagent, CIP
Akaji, Kenichi,Tamai, Yasunori,Kiso, Yoshiaki
, p. 9341 - 9344 (2007/10/02)
Alamethicin F-30 has been synthesized in solution using a CIP-additive as a coupling agent and TFA as a final deprotecting reagent. All couplings including those between sterically hindered α,α-dimethyl amino acid were successfully achieved by a 60 min re
Selective Amide Cleavage in Peptides Containing α,α-Disubstituted α-Amino Acids
Wipf, Peter,Heimgartner, Heinz
, p. 354 - 368 (2007/10/02)
A new synthesis of dipeptides with terminal α,α-disubstituted α-amino acids, using 2,2-disubstituted 3-amino-2H-azirines 1 as amino-acid equivalents, is demonstrated.The reaction of 1 with N-protected amino acids leads to the corresponding dipeptide amide
