Trace the carbon skeleton through carbon–carbon couplings at natural abundance.
Checked against A. Bax, R. Freeman, S. P. Kempsell, J. Am. Chem. Soc. 102, 4849–4851 (1980), doi:10.1021/ja00534a056; A. Bax, R. Freeman, T. A. Frenkiel, J. Am. Chem. Soc. 103, 2102–2104 (1981), doi:10.1021/ja00398a044.
Process NMR spectra in NMRium and draw pulse sequences, from a library of standard experiments or column by column, and save both as figures that open again. The site needs JavaScript, because every spectrum and figure is handled in your browser.