Preparation of Peptide Thioesters through Fmoc-Based Solid-Phase Peptide Synthesis by Using Amino Thioesters
作者:Nicolai Stuhr-Hansen、Theis S. Wilbek、Kristian Strømgaard
DOI:10.1002/ejoc.201300927
日期:2013.8
procedure for the synthesis of peptide alkyl thioesters by 9-fluorenylmethoxycarbonyl (Fmoc) solid-phasepeptidesynthesis was developed. The free C terminus of a fully protected peptide was coupled in solution with the free amino group of an amino thioester. This furnished the fully protected peptidethioester, which was globally deprotected to afford the desired unprotected peptidethioester. The method
EFFICIENT CONVERSION OF CARBOXYLIC ACIDS INTO THIOL ESTERS
作者:Takehisa Kunieda、Yoshihiro Abe、Masaaki Hirobe
DOI:10.1246/cl.1981.1427
日期:1981.10.5
A facile and direct preparation of thiol esters from carboxylic acids and thiols using diphenyl 2-oxo-3-oxazolinylphosphonate in the presence of triethylamine is described.
Synthesis and Crystal Structure of S-ethyl-2(tert-butoxycarbonylamino)-4-methyl-pentanethioate
作者:B. Dinesh、H. R. Manjunath、S. Naveen、K. Abiraj、A. Ramesh Baba、D. Channe Gowda、M. A. Sridhar、J. Shashidhara Prasad
DOI:10.1080/15421400903483940
日期:2010.2.25
S-ethyl-2(tert-butoxycarbonylamino)-4-methyl-pentanethioate (Boc-Leu-SEt) was synthesized by the mixed anhydride method IBCF/HOBt. The product obtained was characterized by 1H NMR, MS, and IR techniques, and finally confirmed by X-ray diffraction method. The compound crystallizes in the orthorhombic space group P212121 with cell parameters a=9.674(8)angstrom, b=10.659(7)angstrom, c=16.219(13)angstrom with Z=4. The structure exhibits both inter and intramolecular hydrogen bonds of the type N-H center dot center dot center dot O and C-H center dot center dot center dot O. The molecule possesses a chiral center at C9.