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- h) Which is a weaker base and why? Pyridine Pyrrole i) Name the following compounds. H2N A B NH2Br NaoH NH2 H>N (B HYO what is compound A and B?The key step in a reported laboratory synthesis of sativene, a hydrocarbon isolated from the mold Helminthosporium sativum, involves the following base treatment of a keto tosylate. What kind of reaction is occurring? How would you complete the synthesis?