| 摘要 |
PCT No. PCT/DK89/00071 Sec. 371 Date Oct. 9, 1990 Sec. 102(e) Date Oct. 9, 1990 PCT Filed Mar. 29, 1989 PCT Pub. No. WO89/09775 PCT Pub. Date Oct. 19, 1989.The present invention relates to compounds of formula in which R1-R8 can be the same or different and stand for hydrogen or a straight or branched aliphatic C1-C10 hydrocarbon radical. In addition, R3 when taken together with either R1 or R5 can form a saturated aliphatic 5-, 6-or 7-membered ring, which may be substituted with one or more C1-C4-alkyl radicals. The present compounds are effective e.g. in drugs influencing calcium metabolism. |
