A Synthetic Azinomycin Analogue with Demonstrated DNA Cross-Linking Activity: Insights into the Mechanism of Action of this Class of Antitumor Agent The authors gratefully acknowledge the financial support provided by the CRC and the EPSRC. We are indebted to the EPSRC National Mass Spectrometry Centre for performing mass spectral measurements, and the EPSRC Chemical Database Service at Daresbury.1.