摘要:
A process for preparing a compound having structure (I) wherein n is an integer from 1-5; each of R1 and R2 independently is optionally substituted C1-C6 alkyl; each of W and X is independently hydrogen or C1-C6 alkyl; Y is O, S or NR3 where R3 is hydrogen, C1-C6 alkyl or a protective group; and Z is a CD ring structure, a steroid structure, or a vitamin D structure, each of which optionally having structure (IV) wherein W, X, Y and Z are defined above, in the presence of a base, with a compound having structure (V) or (v′) wherein n, R1 and R2 are as defined above, and E is an eliminating group.
摘要:
Compounds of the general formula: ##STR1## wherein R.sub.1 represents a C1-10 alkyl group which may be substituted by one or more hydroxyl groups, R.sub.2 represents a hydrogen atom or a hydroxyl group, and R.sub.3 represents a hydrogen atom or a hydroxyl group; their intermediates; as well as synthesis processes of these compounds and intermediates are disclosed. The compounds of this invention, vitamin D derivatives substituted by sulfur atoms at the 22-position have a strong inhibitory effect against proliferation of keratinocytes.
摘要:
A 1.alpha.-hydroxy vitamin D.sub.3 derivative of the formula: ##STR1## where R.sub.1 is a hydroxyl group, an amino group or the group: OR' (where R' is a lower alkyl group having 1 to 7 carbon atoms that may or may not be substituted by a hydroxyl group, a halogen atom, a cyano group, a lower alkoxy group having 1 to 3 carbon atoms, an amino group, or an acylamino group); R.sub.2 is a hydrogen atom or a hydroxyl group), and a process for preparing the same are disclosed.The compound represented by the formula above has the calcium control action and the ability to induce differentiation in tumor cells and, therefore, are useful as an antitumor agents and a medicine for treating calcium dysbolism-caused diseases.
摘要:
A 1.alpha.-hydroxy-vitamin D derivative represented by formula (I): ##STR1## wherein R.sub.1 represents a hydrogen atom or a hydroxyl group; and R.sub.2 represents a straight-chain or branched lower alkyl, lower alkenyl or lower alkynyl group, which is substituted with a hydroxyl group, a halogen atom, a cyano group, a lower alkoxy group, an amino group or an acylamino group,is disclosed. The compound exhibits calcium metabolism regulating activity and differentiation stimulating activity on tumor cells, etc. and is useful as a treating agent for diseases caused by abnormal calcium metabolism, such as osteoporosis and osteomalacia, or as an antitumor agent.
摘要翻译:由式(I)表示的1α-羟基 - 维生素D衍生物:其中R 1表示氢原子或羟基; R 2表示被羟基,卤素原子,氰基,低级烷氧基,氨基或酰氨基取代的直链或支链的低级烷基,低级链烯基或低级炔基 。 该化合物表现出钙代谢调节活性和对肿瘤细胞的分化刺激活性等,并且可用作由异常钙代谢引起的疾病如骨质疏松症和骨软化症或作为抗肿瘤剂的治疗剂。
摘要:
Dibenz[b,f][1,4]oxazepine derivatives represented by the formula ##STR1## [wherein R.sub.1, n, R.sub.2 and R.sub.3 are as defined in the specification], and a process for preparing the same are disclosed. The object compounds have excellent serum cholesterol lowering activity, serum lipid lowering activity, blood lipid peroxide lowering activity and anti-aggregation of platelet activity, and therefore are useful as a drug.
摘要:
1.alpha.-hydroxy-vitamin D derivatives represented by formula ##STR1## wherein R.sub.1 represents a hydrogen atom or a hydroxyl group; and R.sub.2 represents a straight-chain or branched C.sub.2 -C.sub.7 alkyl, C.sub.2 -C.sub.7 alkenyl, or C.sub.2 -C.sub.7 alkynyl group. The compounds exhibit calcium metabolism regulating activity and differentiation stimulating activity on tumor cells, and are useful as treating agents for diseases caused by abnormal calcium metabolism, such as osteoporosis and osteomalacia, or as antitumor agents.
摘要:
A process for the production of a compound of formula (II), which comprises reacting an epoxy compound of formula (I) with an alcohol, wherein the reaction is carried out under a basic condition. ##STR1## R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 are as defined in the specification. The compounds are useful intermediates for the production of vitamin D.sub.3 derivatives.
摘要:
Vitamin D derivatives of the formula ##STR1## where R.sub.1, R.sub.2 and R.sub.3 which may be the same or different each represents a hydrogen atom or a hydroxyl group; X is an oxygen atom, the group of the formula OR.sub.4 (where R.sub.4 is either a hydrogen atom or a lower alkyl having 4 to 6 carbon atoms that may or may not be substituted by a hydroxyl group), or the group of the formula=N-OR.sub.5 (where R.sub.5 is either a hydrogen atom or a lower alkyl group having 1 to 5 carbon atoms that may or may not be substituted by a hydroxyl group, an amino group or a lower alkylamino group having 1 to 3 carbon atoms), provided that the carbon atom at 20-position is linked to X by a single bond when X is the group of the formula OR.sub.4, and by a double bond in other cases, and a process for preparing the derivatives are disclosed.The derivatives have both the immunoregulating action and the ability to induce differentiation in tumor cells and hence are useful as medicines such as antiallergic agents, antirheumatic agents and antitumor agents.
摘要:
Phenylpiperazine derivatives of the formula: ##STR1## wherein R.sub.1 is a hydrogen atom or a straight- or branched-chain saturated or unsaturated alkyl group having 1 to 8 carbon atoms which may be substituted at any position by a hydroxyl group, a carboxyl group, a lower alkoxycarbonyl group or an oxo group; and R.sub.2 is a hydrogen atom, a halogen atom, a lower alkyl group or a sulfamoyl group, and a process for producing the same are disclosed. The derivatives of the formula have alpha blocking and serotonin antagonizing activities and are useful as a drug.
摘要翻译:具有下式的苯基哌嗪衍生物:其中R1是氢原子或可以在任何位置被羟基取代的具有1-8个碳原子的直链或支链饱和或不饱和烷基, 羧基,低级烷氧基羰基或氧代基; R 2为氢原子,卤素原子,低级烷基或氨磺酰基及其制造方法。 该衍生物具有α阻断和5-羟色胺拮抗活性,可用作药物。
摘要:
A 22-oxacholecalciferol derivative represented by formula (I): ##STR1## wherein R.sub.1 represents a hydrogen atom or a hydroxyl group; and R.sub.2 and R.sub.3, which may be the same or different, each represent a lower alkyl group having from 1 to 5 carbon atoms,and a process for preparing the same are disclosed. The compound of the present invention has potent differentiation inducing activity and cell proliferation inhibitory activity and is expected to be useful as an anti-tumor agent, an antirheumatic, a treating agent for psoriasis, and a treating agent for hyperparathyreosis. The process of the present invention makes it possible to efficiently produce a desired 22-oxacholecalciferol derivative while reducing by-production.