Then,the regioselective ortho lithiation of alkyloxypyridine bromide was further performed to produce the diphenylphosphine alkyloxypyridine bromide derivatives(3a,3b and 6a).是什么意思_Then,the regioselective ortho lithiation of alkyloxypyridine bromide was further performed to produce the diphenylphosphine alkyloxypyridine bromide derivatives(3a,3b and 6a).在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句