72213-27-5

Upstream product

• 32150-91-7 phthaloyl-L-phenylalanyl chloride 
• 5123-55-7 Nα-phthaloyl-L-phenylalanine 
• 1590361-11-7 O-diethylcarbamoyl-N-phenethylhydroxylamine 
• 161497-77-4 (S)-dimethyl(phenyl)(3-phenyl-2-phthalimidopropanoyl)silane 
• 1590361-20-8 N-tert-butoxycarbonyl-O-diethylcarbamoyl-N-phenethylhydroxylamine 
• 103-63-9 1-phenyl-2-bromoethane 

Relevant academic research and scientific papers

Chemoselective Amide-Forming Ligation Between Acylsilanes and Hydroxylamines Under Aqueous Conditions

We report the facile amide-forming ligation of acylsilanes with hydroxylamines (ASHA ligation) under aqueous conditions. The ligation is fast, chemoselective, mild, high-yielding and displays excellent functional-group tolerance. Late-stage modifications of an array of marketed drugs, peptides, natural products, and biologically active compounds showcase the robustness and functional-group tolerance of the reaction. The key to the success of the reaction could be the possible formation of the strong Si?O bond via a Brook-type rearrangement. Given its simplicity and efficiency, this ligation has the potential to unfold new applications in the areas of medicinal chemistry and chemical biology.