摘要:
The invention provides a phosphonic diester derivative of the general formula ##STR1## The phosphonic diester derivative of the invention has hypoglycemic and hypolipidemic activities, for instance, and is of value as an antidiabetic or anti-hyperlipidemic agent.
摘要:
The invention provides a phosphonic diester derivative of the formula: ##STR1## wherein the variables are as defined in the specification. The derivative of the invention has excellent hypolipidemic and hypoglycemic activities and little side effects and hence is useful as therapeutic and prophylactic agents for hyperlipidemic diseases and diabetes and as a therapeutic agent for cataract.
摘要:
A pharmaceutical composition for treating hyperlipidemia containing, as the active ingredient, at least one carboxamide compounds represented by the formula (1) which possess excellent activities in lowering serum lipid, as well as having low toxicity with high safety.Said carboxamide compounds represented by the formula (1) are known compounds developed by the present inventors, but the pharmacological activities for treating hyperlipidemia have not been found yet.
摘要:
A phosphonic diester derivative represented by the following formula (1): ##STR1## wherein R.sup.1 represents a cycloalkyl group; a phenyl group which may have 1 to 3 substituents selected from the group consisting of a lower alkoxy group, a lower alkyl group, a halogen atom, a halogen-substituted lower alkyl group, a lower alkanoyl group, a nitro group, a benzoyl group, a cyano group, an N-lower alkylcarbamoyl group, an N-phenyl-lower alkylcarbamoyl group, an N-(halogen-substituted phenyl)carbamoyl group and an N,N-di-lower alkylcarbamoyl group; a 1,3,4-thiadiazol-2-yl group having a halogen-substituted lower alkyl group as a substituent; a thiazolyl group; a pyridyl group which may be substituted by a halogen atom; a benzothiazol-2-yl group having 1 to 2 lower alkoxy groups on the phenyl ring; or a 4,5-dihydrothieno[3,2-e]benzothiazol-2-yl group; R.sup.2 represents a hydrogen atom or a phenyl lower alkyl group; R.sup.3 and R.sup.4 each represents a lower alkyl group; and A represents a heterocyclic ring selected from the group consisting of a pyrazine ring, a thiophene ring and a phenyl-substituted thiazole ring; the derivative being of value as an agent for treating and preventing hyperlipidemia, diabetes and cataract, or as an antitumor agent.
摘要:
The invention provides pyrazolo[1,5-a]pyrimidine derivatives which are useful as potent analgesics and represented by the formula ##STR1## wherein R.sup.1 is lower alkenyl, hydroxy(lower)alkyl, (lower)alkylthio(lower)alkyl, (lower)alkanoyloxy(lower)alkyl, (lower)alkoxy(lower)alkyl, furyl or thienyl, R.sup.2 is pyridyl, 1-oxide-pyridyl, lower alkyl-substituted pyrazinyl, lower alkyl-substituted pyrimidinyl, or phenyl which may have 1 to 3 substituents selected from the group consisting of lower alkyl, lower alkoxy and halogen, R.sup.3 is hydrogen or halogen, and A is a single bond or lower alkylene.
摘要:
The invention provides a pyrazolo�1,5-a!pyrimidine derivative of the following formula (1): ##STR1## wherein R.sup.1, R.sup.3, R.sup.4, R.sup.5, R.sup.6, Q, A and n are defined in the description; and R.sup.2 is naphthyl, cycloalkyl, furyl, thienyl, optionally halogen-substituted pyridyl, optionally halogen-substituted phenoxy, or phenyl which may have 1 to 3 substituents selected from the group consisting of lower alkyl, lower alkoxy, halogen, nitro, halogen-substituted lower alkyl, halogen-substituted lower alkoxy, lower alkoxycarbonyl, hydroxyl, phenyl(lower)alkoxy, amino, cyano, lower alkanoyloxy, phenyl and di(lower)alkoxyphos-phoryl(lower)alkyl. This derivative is useful as a potent analgesic.
摘要:
An equalizer including a channel estimator allowing a Viterbi algorithm processor to estimate transmitted symbols accurately, so that the impulse response of a transmission channel may not deviate from the correct one. The equalizer outputs an transmitted symbol sequence estimate having the largest path metric by correcting the channel impulse response by parameter coefficients of the LMS (Least Mean Square) or RLS (Recursive Least Square) algorithm, by compensating for phase fluctuations due to the frequency offset and phase jitter of received signals, or by using a sequence included in an intermediate portion of a TDMA (Time Division Multiple Access) frame format.
摘要:
An infrared detecting apparatus which includes an infrared filter which intercepts visible light and transmits infrared rays having at least two infrared detecting elements for receiving infrared rays transmitted through the filter and converting the received infrared rays into an electric signal and an electronic circuit which amplifies the difference signal supplied from the infrared detecting elements so that the relative positional relationship between the infrared detecting elements and the infrared filter which allows for the solid angle extending from an arbitrary point on the infrared filter to the peripheral edge of the infrared detecting element's receiving surface to be not greater or less than a specific range.
摘要:
An LPC analyser calculates LPC coefficients using signals bandlimited to half the sampling frequency of the LPC coefficients to be calculated. Thef calculated LPC coefficients are continuous in time scale and free from aliasing distortion. A bandlimiting circuit suitable for use in the LPC analyser is also disclosed.
摘要:
In a delta-sigma modulator for an A/D converter for modulating an analog input signal to produce a modulated signal of a digital form, a first integrator produces a first integral signal indicative of an integral of the difference between the analog input signal and feedback signal, a first delay element delays the first integral signal by one sampling period, a second integrator produces a second integral signal indicative of an integral of the difference between the output of the first delay element and the feedback signal, a first quantizer produces a two-level signal "1" or "0" depending on whether or not the second integral signal is greater than a predetermined reference, and a second quantizer produces a two-level signal "1" or "0" depending on whether or not the first integral signal is greater than a predetermined reference. An output digital signal is produced in accordance with the outputs of the first and the second quantizers. The feedback signal is also produced in accordance with the outputs of the first and the second quantizers.