For inhibiting thombocyte aggregation, vasodilating and bronchodilating, the new chroman derivatives of the formula ##STR1## in which R.sup.1 stands for hydrogen, halogen, alkyl, hydroxyl, alkoxy, trifluoromethyl or cyano, R.sup.2 and R.sup.3 are identical or different and stand for hydrogen, alkyl, cycloalkyl or aryl, R.sup.4 stands for hydroxyl, alkoxy, aryloxy, aralkoxy or for a group of the formula --NR.sup.5 R.sup.6, where R.sup.5 and R.sup.6 are identical or different and in each case denote hydrogen, alkyl, aryl or aralkyl, X denotes a direct bond or an oxygen or sulphur atom, NH or N-alkyl, and n denotes 0 or 1, and their physiologically tolerable salts. Also new intermediates of the formulas ##STR2##
为了抑制血小板聚集、扩张血管和扩张支气管,新的公式##STR1##中的新的
色醇衍
生物,在该公式中,R.sup.1代表氢、卤素、烷基、羟基、烷氧基、三
氟甲基或
氰基,R.sup.2和R.sup.3相同或不同,代表氢、烷基、环烷基或芳基,R.sup.4代表羟基、烷氧基、芳氧基、芳基烷氧基或公式--NR.sup.5 R.sup.6的基团,其中R.sup.5和R.sup.6相同或不同,在每种情况下表示氢、烷基、芳基或芳基烷基,X表示直接键或氧或
硫原子、NH或N-烷基,n表示0或1,以及它们的生理耐受盐。同时也有新的中间体的公式##STR2##