A compound is disclosed which has the formula, ##STR1## where R.sup.1 is a hydrogen atom, or a straight or branched chain alkyl group having 1 to 4 carbon atoms, and R.sup.2 is a straight or branched chain alkyl group having 1 to 4 carbon atoms, ##STR2## in which n is an integer of 0 to 3, or a pharmaceutically acceptable salt thereof. A process for producing the compound and a medicine containing the compound are also disclosed. Such medicine is effectively useful for inhibiting myocardial infarction.
                            本发明公开了一种化合物,其
化学式为##STR1##其中R.sup.1为氢原子,或具有1至4个碳原子的直链或支链烷基;R.sup.2为具有1至4个碳原子的直链或支链烷基,##STR2##其中n为0至3的整数,或其药学上可接受的盐。本发明还公开了制备该化合物的方法和含有该化合物的药物。该药物有效地用于抑制心肌梗死。