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O-(3,4-Dihydro-4-oxo-1,2,3-benzotriazin-3-yl)-N,N,N?,N?-tetramethyluronium tetrafluoroborate (2-(3,4-dihydro-4-oxo-1,2,3-benzotriazin-3-yl)-1,1,3,3-tetramethyluronium tetrafluoroborate, TBTU) may be used as coupling reagent in the synthesis of macrocyclic polyamine derivatives with various length of linkers, condensation reagent in the large-scale preparation of the hematoregulatory nonapeptide (Glp-Glu-Asp)2-DAS-(Lys)2 (2,SK&F 107647), coupling reagent for peptide synthesis which best suppresses racemization during fragment condensation.
J Hiebl, D P Alberts; A F Banyard; K Baresch; H Baumgartner; I Bernwieser; P K Bhatnagar; M Blanka; M Bodenteich; T Chen; P M Esch; H Kollmann; I Lantos; K Leitner; G Mayrhofer; R Patel; A Rio; F Rovenszky; D Stevenson; K D Tubman; K Undheim; H Weihtrager; W Welz; K Winkler. Large-scale synthesis of hematoregulatory nonapeptide SK&F 107647 by fragment coupling. Journal of Peptide Research. 1999, 54 (1), 54-65.
Cuihua Liu; Hudson Robert H. E.; Petersen Nils O. Convergent and sequential synthesis of dendritic, multivalent complexing agents. Synthesis. 2002, (10), 1398-1406.
Hazard Statements: H315-H319-H335
Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Precautionary Statements: P261-P280a-P305+P351+P338-P304+P340-P405-P501a
Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves and eye/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.