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(7-Azabenzotriazol-1-yloxy)tris(dimethylamino)phosphonium Hexafluorophosphate156311-85-2100 % similar ((7-Azabenzotriazol-1-YL)oxy)tris(pyrrolidino)phosphonium hexafluorophosphate156311-83-070 % similar Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphate56602-33-667 % similar PyBOP128625-52-545 % similar 2-(7-Azabenzotriazole-1-yl)-1,1,3,3-tetramethyluronium tetrafluoroborate873798-09-545 % similar 1-Hydroxy-7-azabenzotriazole39968-33-740 % similar Hdbtu164861-52-337 % similar (6-Chloro-1H-benzotriazol-1-yloxy)tripyrrolidinophosphonium Hexafluorophosphate893413-42-837 % similar O-(Benzotriazol-1-yl)-N,N,N',N'-bis(tetramethylene)uronium Hexafluorophosphate105379-24-635 % similar (Benzotriazol-1-yloxy)dipiperidinocarbenium hexafluorophosphate190849-64-035 % similar HATU148893-10-131 % similar