这类4-羟基香豆素衍生物是一类口服抗凝血药物。
Such 4 - hydroxycoumarin derivatives are a class of oral anti-clotting drugs.
报道了一类1，1-二取代炔丙醇（1）氯代产物与4-甲基-7-羟基香豆素反应的异常缩合产物。
This paper reported a kind of unusual products from the reaction of chlorides of 1,1-disubstitutedpropargyl alcohols with 4-methyl-7-hydroxycoumarin.
前言：目的：4 -羟基香豆素是合成其他4 -羟基香豆素衍生物的关键中间体，本研究摸索出了合成4 -羟基香豆素的最有效条件。
Objective: 4-hydroxycoumarin is a pivotal intermediate in synthesis of other 4-hydroxycoumarin derivatives. This article aims to investigate the optimal condition in synthesis of 4-hydroxycoumarin.
前言：目的：4 -羟基香豆素是合成其他4 -羟基香豆素衍生物的关键中间体，本研究摸索出了合成4 -羟基香豆素的最有效条件。
Objective: 4-hydroxycoumarin is a pivotal intermediate in synthesis of other 4-hydroxycoumarin derivatives. This article aims to investigate the optimal condition in synthesis of 4-hydroxycoumarin.
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