Side chain derivatized 15-oxygenated sterols, methods of using them and
a process for preparing them
    9.
    发明授权
    Side chain derivatized 15-oxygenated sterols, methods of using them and a process for preparing them 失效
    侧链衍生的15-氧化甾醇,使用它们的方法和制备它们的方法

    公开(公告)号:US5371077A

    公开(公告)日:1994-12-06

    申请号:US923423

    申请日:1992-08-03

    摘要: Pharmaceutical compositions are provided for lowering the activity of HMG-CoA reductase and/or lowering serum cholesterol, comprising an amount effective to lower the activity of HMG-CoA reductase and/or lower serum cholesterol of a side chain derivatized 15-oxygenated sterol having the formula (I): ##STR1## the basic ring structure being saturated or unsaturated, wherein R.sub.1 is --OH, .dbd.O, --OR.sub.7, ##STR2## a sulfate group, a sugar moiety, or a Mg, Na, or K salt of a sulfate group;R.sub.2 is --H, --OH, .dbd.O, mono- or di-halogen, or a C.sub.1 to C.sub.6 alkyl group, which may be unsaturated or substituted with halogen;R.sub.3 is --H, --OH, halogen, or a C.sub.1 to C.sub.6 alkyl group, which may be unsaturated or substituted with halogen;R.sub.4 is nonexistent when there is a double bond between the 8 and 14 carbons or .alpha.H, .beta.H, or an .alpha.C.sub.1 to C.sub.6 alkyl group;R.sub.5 is --OH, .dbd.O, .dbd.NOH, or ##STR3## R.sub.6 is --CH.sub.2 CH(CH.sub.3).sub.2 or CH.sub.2 N(CH.sub.3).sub.2, in which one or more of the hydrogen atoms is replaced by OH or halogen;R.sub.7 is a C.sub.1 to C.sub.6 alkyl group;R.sub.8 is a C.sub.1 to C.sub.20 aliphatic group, which may be substituted or unsubstituted, or a phenyl group; andn is an integer of from 2 to 6; andoptionally a pharmaceutically acceptable carrier or excipient, with the proviso that R.sub.6 is not --CH.sub.2 CH(CH.sub.3)(CH.sub.2 OH). Methods of using the pharmaceutical compositions containing the side chain derivatized 15-oxygenated sterols are also provided.A new process is also provided for preparing side chain derivatized 15-oxygenated sterols. This process includes oxidative cleavage of the saturated side chain of the sterol with trifluoroperacetic acid to give a side chain trifluoroacetate and subsequent hydrolysis of this ester. The resultant side chain alcohol is a valuable and advanced intermediate for the preparation of side chain derivatives of 15-oxygenated sterols.

    摘要翻译: 提供了用于降低HMG-CoA还原酶和/或降低血清胆固醇的活性的药物组合物,其包含有效降低HMG-CoA还原酶的活性和/或降低侧链衍生的15-氧化甾醇的血清胆固醇的量,其具有 式(I):饱和或不饱和的,其中R 1是-OH,= O,-OR 7,硫酸根基团,糖基团或硫酸根基团的Mg,Na或K盐; R2是-H,-OH,= O,单 - 或二 - 卤素,或可以是不饱和的或被卤素取代的C1-C6烷基; R3是-H,-OH,卤素或C1-C6烷基,其可以是不饱和的或被卤素取代的; 在8和14碳之间存在双键或αH,βH或αC1至C6烷基时,R4不存在; R 5是-OH,= O,= NOH,或者R 6是-CH 2 CH(CH 3)2或CH 2 N(CH 3)2,其中一个或多个氢原子被OH或卤素取代; R7是C1-C6烷基; R8是可以是取代或未取代的C1〜C20脂肪族基团或苯基; n为2〜6的整数。 和任选的药学上可接受的载体或赋形剂,条件是R 6不是-CH 2 CH(CH 3)(CH 2 OH)。 还提供了使用含有侧链衍生的15-氧化甾醇的药物组合物的方法。 还提供了用于制备侧链衍生的15-氧化甾醇的新方法。 该方法包括用三氟过乙酸氧化裂解固醇的饱和侧链,得到侧链三氟乙酸盐,随后水解该酯。 所得的侧链醇是制备15-氧化甾醇的侧链衍生物的有价值和先进的中间体。