The invention relates to a process for the production of compounds of the formula ##STR1## in which R is hydrogen or optionally substituted alkyl, alkenyl, aralkyl or aryl, by microbiological transformation of ##STR2## follow by catalytic hydrogenation. The compounds obtained are useful for the treatment of diabetes, hyperlipoproteinaemia and adiposity which comprises aerobically cultivates, in the presence of an assimilable source of carbon nitrogen, at a temperature of 20.degree. to 45.degree. C. and pH between 2 and 10 and in the presence of an effective amount of a compound of the formula ##STR3## in which R has the above-given meaning and, R.sub.1 denotes an optionally substituted benzyl radical or an optionally substituted .beta.-alkenyl group, an aerobic microorganism or an extract of aerobic microorganism capable, in a nutrient medium containing a compound of the formula (X), or accumulating an amount of a compound of the formula ##STR4## in which R and R.sub.1 have the above-mentioned meanings and subjecting the resulting compound of the general formula XI to catalytic hydrogenation.
本发明涉及一种制备化合物的方法,该化合物的
化学式为##STR1##
其中R为氢或可选取代的烷基,烯基,芳基烷基或芳基,通过对##STR2##进行微
生物转化,然后进行催化氢化。所得的化合物可用于治疗糖尿病,高脂蛋白血症和肥胖症,包括在可吸收的碳氮源的存在下,以20℃至45℃的温度和pH在2至10之间的条件下,以及在化合物的有效量的存在下,该化合物的
化学式为##STR3##
其中R具有上述含义,R.sub.1表示可选取代的苄基基团或可选取代的β-烯烃基团,一种好氧微
生物或一种能够在营养
培养基中含有化合物(X)的情况下,积累化合物的量为##STR4##
其中R和R.sub.1具有上述含义,并将得到的通式XI化合物进行催化氢化。