Additional file 1.

Spectral data of Pyrophen (1). Ten charts (chart 1-10) containing the mass (ESI, HRESI, EI MS) and NMR (1HNMR, 13CNMR, H, H COSY, HMQC, HSQC, HMBC) spectral data of Pyrophen (1).

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Shaaban et al. Organic and Medicinal Chemistry Letters 2012 2:6   doi:10.1186/2191-2858-2-6