Rapid synthesis of acid azides via in situ generation of acid chlorides using CPICl as chlorinating agent from the corresponding Nα-protected amino acids is described. Also the conversion of acid azides into ureidopeptides through the Curtius rearrangement under ultrasonication is delineated. The mildness of the protocol renders the acid-sensitive substrates to afford the corresponding amino acid azides
Babu, Vommina V. Suresh; Ananda, Kuppanna; Vasanthakumar, Ganga-Ramu, Journal of the Chemical Society. Perkin transactions I, 2000, # 24, p. 4328 - 4331
作者:Babu, Vommina V. Suresh、Ananda, Kuppanna、Vasanthakumar, Ganga-Ramu
DOI:——
日期:——
Synthesis of retro-inverso peptides employing isocyanates of Nα-Fmoc-amino acids/peptide acids catalyzed by DMAP
作者:Rao Venkataramanarao、Vommina V. Sureshbabu
DOI:10.1016/j.tetlet.2006.10.066
日期:2006.12
The Goldschmidt-Wick type reaction between isocyanates of N-alpha-Fmoc-amino acids/peptide acids and N-alpha-Boc-/Z-/ Bsmoc-amino acids catalyzed by DMAP leads to the incorporation of a reversed peptide bond. It was found to be a simple, efficient and clean reaction. All the retro-inverso peptides made were obtained as crystalline compounds in 70-92% yields. (c) 2006 Elsevier Ltd. All rights reserved.
Babu, Vommina V. Suresh; Kantharaju; Sudarshan, Naremaddepalli S., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2006, vol. 45, # 8, p. 1880 - 1886
作者:Babu, Vommina V. Suresh、Kantharaju、Sudarshan, Naremaddepalli S.