Chemical synthesis of a homoserine-mutant of the antibacterial, head-to-tail cyclized protein AS-48 by α-ketoacid–hydroxylamine (KAHA) ligation† †Electronic supplementary information (ESI) available: Experimental procedures, supplementary results, and spectroscopic data for new compounds. See DOI: 10.1039/c7sc00789b Click here for additional data file.

Chemical synthesis of a homoserine-mutant of the antibacterial, head-to-tail cyclized protein AS-48 by α-ketoacid-hydroxylamine (KAHA) ligation.

An antibacterial cyclic AS-48 protein was chemically synthesized by α-ketoacid-hydroxylamine (KAHA) ligation. Initial challenges associated with the exceptionally hydrophobic segments arising from the amphiphilic nature of the protein were resolved by the development of bespoke reaction conditions for hydrophobic segments, using hexafluoroisopropanol (HFIP) as a co-solvent. The synthetic protei...

Spontaneous head-to-tail cyclization of unprotected linear peptides with the KAHA ligation† †Electronic supplementary information (ESI) available: Experimental procedures and analytical data of all new compounds. See DOI: 10.1039/c5sc01774b Click here for additional data file.

Synthesis and stabilities of peptide-based [1]rotaxanes: molecular grafting onto lasso peptide scaffolds† †Electronic supplementary information (ESI) available: Experimental procedures and analytical data of all new compounds. CCDC 1520783. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c7sc00021a Click here for additional data file. Click here for additional data file.

Photoswitchable interlocked thiodiglycolamide as a cocatalyst of a chalcogeno-Baylis–Hillman reaction† †Electronic supplementary information (ESI) available: Experimental procedures, spectroscopic and mass spectrometry data for all of the new compounds, and the full crystallographic details of 3a. CCDC 1532346. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c7sc00724h Click here for additional data file. Click here for additional data file.

Enantioselective palladium(0)-catalyzed intramolecular cyclopropane functionalization: access to dihydroquinolones, dihydroisoquinolones and the BMS-791325 ring system† †Electronic supplementary information (ESI) available: Experimental procedures and characterization of all new compounds. CCDC 1401582. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c5sc01909e Click here for additional data file. Click here for additional data file.

Taddol-based phosphoramidite ligands enable enantioselective palladium(0)-catalyzed C–H arylation of cyclopropanes. The cyclized products are obtained in high yields and enantioselectivities. The reported method provides efficient access to a broad range of synthetically attractive cyclopropyl containing dihydroquinolones and dihydroisoquinolones as well as allows for an efficient enantioselect...