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Batrachotoxinin-A 20-alpha-benzoate (BTX-B), an analog of the potent depolarizing agent batrachotoxin (BTX), was prepared by selective esterification of naturally occurring batrachotoxin-A with benzoic acid. BTX-B depolarized rat phrenic nerve-diaphragm preparations with a time course and concentration dependence virtually indistinguishable from that of(More)
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