摘要:
A compound having the structure: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 are each independently a hydrogen atom, an alkyl group or an aryl group, or wherein R.sup.2 and R.sup.3 together and R.sup.4 and R.sup.5 together are joined as a cycloalkyl group; wherein R.sup.6 is a hydroxyl group, an alkoxyl group, an aralkyloxy group, or --OSi (R.sup.8 R.sup.9 R.sup.10) in which R.sup.8, R.sup.9 and R.sup.10 are each independently an alkyl group or a phosphate salt group and R.sup.7 is a hydrogen atom, a halogen atom, an alkyl group, or an alkoxyl group.
摘要:
A 1,2-dioxetane derivative of formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 are each independently a hydrogen atom, an alkyl group, or an aryl group, R.sup.2 and R.sup.3 together and R.sup.4 and R.sup.5 together can be joined as a cyclo-alkyl group, R.sup.6 is a hydroxyl group, an alkoxyl group, an aralkyloxy group, --OSi(R.sup.8 R.sup.9 R.sup.10) in which R.sup.8, R.sup.9 and R.sup.10 are each independently an alkyl group, or a phosphate salt, and R.sup.7 is a hydrogen atom, a halogen atom, an alkyl group, or an alkoxyl group.
摘要:
Methods of producing carboxylic acid ester derivatives of formulae (I) and (II), which are useful, for instance, as intermediates for producing an anti-hypercholesterolemic agent having an inhibitory effect on HMG-CoA Reductase: ##STR1## wherein R.sup.1 and R.sup.2 are independently a protective group for hydroxyl group, or R.sup.1 and R.sup.2 integrally constitute a protective group for hydroxyl groups; R.sup.3 is an alkyl group, or an aryl group; and R.sup.4 is a substituted aryl group, a substituted heterocyclic group, a substituted vinyl group, or a substituted cycloalkenyl group; and ##STR2## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are respectively the same as defined in the above formula (I), are disclosed. In addition, intermediates for use in these methods of producing the carboxylic acid ester derivatives are disclosed.
摘要:
4-hydroxytetrahydropyran-2-one derivatives with general formula (I) are useful as cholesterol reducing agents as well as lipid reducing agents, serving as inhibitors of HMG-CoA reductase, and capable of inhibiting the biosynthesis of peroxidized lipids, and therefore effective for curing arteriosclerosis: ##STR1## wherein R.sub.1 represent hydrogen or a 2-tetrahydropyranyl group; R.sub.2 and R.sub.3 each represent hydrogen or an alkyl group having 1 to 6 carbon atoms; R.sub.4 represents hydrogen, an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an aryl group, an aralkyl group, an acyl group, an aroyl group or a substituted sulfonyl group; A represents --CH.sub.2 CH.sub.2 --, or --CH.dbd.CH--; and n is an integer of 1 or 2, and intermediates for synthesizing the 4-hydroxytetrahydropyran-2-one derivatives are disclosed.
摘要:
A child protector mechanism includes a base member, a first lever, a second lever, a bush arranged between the first lever and the second lever, a child protector lever for moving the bush to an unset position or a set position, and a position retaining mechanism provided between the first lever and the bush. The bush is retained at each of the unset position and the set position by the position retaining mechanism provided between the first lever and the bush. Therefore, when assembling the bush and the first lever to the base member, the bush is retained at a predetermined position (for example, unset position) with respect to the first lever so that the bush does not move. Thus, the easiness of assembly of the bush and the first lever and the easiness of assembly of the child protector lever are excellent.
摘要:
A door lock device for a vehicle, provided with an opening lever driven as a door handle is operated, an opening link interposed between the opening lever and a lift lever of a latch mechanism, a lock operation unit for switching the opening link to an unlock position or a lock position, and a locking lever for driving the lock operation unit. A holding section is provided to the opening lever. The holding section holds the opening link at a holding position between the lock position and the unlock position when the opening link becomes switched by the locking lever through the lock operation unit from the lock position to the unlock position with the opening link driven by the opening lever.
摘要:
A door lock device includes a lever mechanism which carries out lock/unlock operation in response to turn operation of a key cylinder. The lever mechanism includes a key rotor which includes a coupling hole to which an inner end of a rod is coupled in a torque transmittable manner and is rotatably assembled to a housing, and a key lever which includes a hub which is coupled to the key rotor in a torque transmittable manner and is arranged in the housing. The key lever includes a first arm which extends to radial outward direction from the hub and is capable of engaging with a first engagement portion of the active lever, and a second arm which extends to radial outward direction from the hub and is capable of engaging with a second engagement portion of the active lever.
摘要:
A table device for chucking a substrate includes a chucking unit including a porous body, and having a substrate chucking surface, and a conductive film which is disposed on the substrate chucking surface of the chucking unit, and which is grounded.
摘要:
The present invention is intended to provide a method of manufacturing an ink jet head having good stable-ejection characteristics, and an ink jet head. The invention is an exemplary method of manufacturing an ink jet head having a cavity that contains liquid and a nozzle that communicates with the cavity, and ejecting the liquid contained in the cavity from an ejection orifice of the nozzle with using a nozzle opening at an opposite side of the cavity as the ejection orifice. The exemplary method includes making an ejection orifice on a side of the nozzle have a taper portion in which the diameter increases progressively toward the ejection orifice side and forming lyophobic films and lyophilic films alternately on the taper portion inside the nozzle so as to form a stack film, and forming a lyophobic film inside nozzle in which annular end surfaces of the lyophobic films and annular end surfaces of the lyophilic films are exposed alternately by grinding the stack film on the taper portion to expose a side section of the stack film.
摘要:
A 1,2-dioxetane derivative of the formula (I): wherein Ar is an aryl group which may have an alkyl group, an aryl group, a halogen atom, an alkoxyl group, a carboxyl group, a formyl group, an alkyl ester, an aryl ester, an alkylketone, an arylketone or a hetero ring bonded thereto, X is a substituent capable of labeling an organic compound or a biological molecule, or an ester, Y is a hydrogen atom, an acyl group or a group of the formula —Si(R4R5R6) (wherein each of R4, R5 and R6 which are independent of one another, is an alkyl group or an aryl group), Z is an alkyl group, an aryl group, an oxygen atom, a sulfur atom, a carbonyl group, —(CO)—O—, —O—(CO)—, —NH—, —NH—CO—, —CO—NH—, —OSi(R7R8)— (wherein each of R7 and R8 which are independent of each other, is an alkyl group or aryl group) or a group of the formula —(R9R10)SiO— (wherein each of R9 and R10 which are independent of each other, is an alkyl group or an aryl group), each of R1 and R2 is an alkyl group or an aryl group, and R3 is a spacer.