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Security has long been a challenging problem in wireless networks, mainly due to its broadcast nature of communication. This opens up simple yet effective measures to thwart useful communications between legitimate radios. Spread spectrum technologies, such as direct sequence spread spectrum (DSSS), have been developed as effective countermeasures against,(More)
The total synthesis of (±)-azaspirene (1) was achieved in a total of six steps from commercially available materials. Keys to the conciseness of our synthetic approach were the effective γ-lactam formation from linear precursor 36 and successful tandem epoxidations of γ-lactam 34 to afford α,β-epoxy-γ-hydroxy-γ-lactam intermediate 14. While our streamlined(More)
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