Strain-promoted sydnone bicyclo-[6.1.0]-nonyne cycloaddition†Electronic supplementary information (ESI) available: Full experimental details, (1)H/(13)C NMR spectral data, protein synthesis and purification. See DOI: 10.1039/c3sc53332h.

Strain-promoted sydnone bicyclo-[6.1.0]-nonyne cycloaddition†Electronic supplementary information (ESI) available: Full experimental details, (1)H/(13)C NMR spectral data, protein synthesis and purification. See DOI: 10.1039/c3sc53332h.