摘要:
A compound of the formula: wherein R1 is a hydrogen atom or a carboxy protective group, R2, R5, R6 and R7 are each a hydrogen atom or a hydroxy group, R3 and R4 are each a hydrogen atom, or are combined together to form an epoxy group or a single bond. R8 and R9 are each an optionally substituted aryl group, and X is a single bond or a methylene group, in addition to the above definitions. R2 and R3 may be combined together to form a single bond; provided that when R2, R5, R6 and R7 are each a hydrogen atom, then R3 and R4 are combined together to form an epoxy group; when R3 and R4 are combined together to form a single bond, then at least one of R2, R5, R6 and R7 is a hydroxy group and the others are hydrogen; and when R3 and R4 are each a hydrogen atom, then at least one of R2, R5, R6 and R7 is a hydroxy group and the others are hydrogen, and X is a methylene group, or its salt.
摘要:
The invention relates to a compound of the formula: ##STR1## in which R.sup.1 and R.sup.2 are each hydrogen or lower alkyl,R.sup.3 is aryl or unsaturated, 5- or 6-membered heterocyclic group containing a sulfur atom, each of which may be substituted by one or more substituent(s) selected from the group consisting of halogen, hydroxy, lower alkyl, aryloxy, trihalo(lower)alkyl, lower alkoxy and mono- or di(lower)alkylamino,R.sup.4 is hydrogen, halogen or lower alkyl,A is methylene, methine, oxa, thia, sulfinyl or sulfonyl,Y is vinylene or ethylene.Z is a group of the formula: ##STR2## wherein R.sup.5 is carboxy or protected carboxy, andR.sup.6 is hydrogen or hydroxy-protective group, andthe line is of a single or double bond, or a pharmaceutically acceptable salt thereof, useful as a 3-hydroxy-3-methylglutaryl-coenzyme A reductase inhibitor.
摘要:
In one aspect, the invention relates to substituted 4-phenoxyphenol analogs, derivatives thereof, and related compounds, which are useful as inhibitors of proliferating cell nuclear antigen (PCNA); synthetic methods for making the compounds; pharmaceutical compositions comprising the compounds; and methods of treating hyperproliferative disorders associated with PCNA using the compounds and compositions. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
摘要:
A printed wiring board is manufactured by a method in which a base substrate having a first insulation layer, a second insulation layer, and a conductive film is provided. An electronic component is placed on the first insulation layer at a position determined based on an alignment mark. After the electronic component is enclosed inside an opening of the second insulation layer, a via hole exposing a terminal of the electronic component is formed at a position determined based on the alignment mark, which is used to determine the position of the electronic component. A via conductor is formed in the via hole, and a conductive layer is formed on the conductive film and patterned to form a conductive circuit connected to the via conductor.
摘要:
A printed wiring board is manufactured by a method in which a base substrate having a first insulation layer, a second insulation layer, and a conductive film is provided. An electronic component is placed on the first insulation layer at a position determined based on an alignment mark. After the electronic component is enclosed inside an opening of the second insulation layer, a via hole exposing a terminal of the electronic component is formed at a position determined based on the alignment mark, which is used to determine the position of the electronic component. A via conductor is formed in the via hole, and a conductive layer is formed on the conductive film and patterned to form a conductive circuit connected to the via conductor.
摘要:
A printed wiring board is manufactured by a method in which a base substrate having a first insulation layer, a second insulation layer, and a conductive film is provided. An electronic component is placed on the first insulation layer at a position determined based on an alignment mark. After the electronic component is enclosed inside an opening of the second insulation layer, a via hole exposing a terminal of the electronic component is formed at a position determined based on the alignment mark, which is used to determine the position of the electronic component. A via conductor is formed in the via hole, and a conductive layer is formed on the conductive film and patterned to form a conductive circuit connected to the via conductor.
摘要:
A printed wiring board comprises a wiring substrate provided with at least one conductor circuit, a solder resist layer formed on the surface of the wiring substrate, covering the at least one conductor circuit, conductor pads formed on a part of the at least one conductor circuit exposed from respective openings provided in the solder resist layer for mounting electronic parts, and solder bumps formed on the respective conductor pads. Connection reliability and insulation reliability are easily improved by making the ratio (H/D) of a height H from solder resist layer surface the solder bump to an opening diameter of the opening about 0.55 to about 1.0 even in narrow pitch structure under the pitch of the opening provided in the solder resist layer of about 200 μm or less.
摘要:
A printed wiring board including a wiring substrate provided with at least one conductor circuit, a solder resist layer formed on the surface of the wiring substrate, covering the at least one conductor circuit, conductor pads formed on a part of the at least one conductor circuit exposed from respective openings provided in the solder resist layer for mounting electronic parts, and solder bumps formed on the respective conductor pads. The ratio (H/D) of a height H of the solder bumps from solder resist layer surface to an opening diameter of the openings are made to be about 0.55 to about 1.0 with the pitch of the openings provided in the solder resist layer of about 200 μm or less.
摘要:
An optical fiber array 10 includes: a substrate 30 with housing grooves 34 for housing optical fibers 24 formed therein; a cover plate 12 for covering the optical fibers 24 that are housed in the housing grooves 34; and an adhesive layer 16 for joining the substrate 30 with the optical fibers 24 being housed in the housing grooves 34 and the coverplate 12. In the substrate 30, there are formed adhesive grooves 36 for introduction of the adhesive layer 16 between the housing grooves 34 for housing the optical fibers 24 and the end portions of the substrate 30.
摘要:
An optical fiber array 10 includes: a substrate 30 with housing grooves 34 for housing optical fibers 24 formed therein; a cover plate 12 for covering the optical fibers 24 that are housed in the housing grooves 34; and an adhesive layer 16 for joining the substrate 30 with the optical fibers 24 being housed in the housing grooves 34 and the coverplate 12. In the substrate 30, there are formed adhesive grooves 36 for introduction of the adhesive layer 16 between the housing grooves 34 for housing the optical fibers 24 and the end portions of the substrate 30.