Abstract: A time division multiplexer includes a plurality of multiplexing units and a plurality of terminal adapters. Each multiplexing unit is connected to one or more terminal adapters by a respective bus. The time division multiplexer further includes a repeating adapter which has a memory. The repeating adapter is connected to two or more multiplexing units to be accessed for temporary storage of the data to be repeated from one to the other.

Abstract: This invention provides a benezene-fused heterocyclic compound of the formula: ##STR1## wherein R.sup.1 is halogen, nitro, amino, hydroxy, lower alkyl, lower alkoxy substituted by carboxy or protected carboxy, acylamino which may have lower alkyl on the amino moiety, or aryloxy which may have halogen,R.sup.2 is hydrogen or halogen,X is --O-- or ##STR2## in which R.sup.3 is hydrogen, lower alkyl or acyl and A is a group of the formula: ##STR3## in which R.sup.4 is hydrogen, lower, alkenyl, lower alkynyl or alkyl which may have suitable substituent(s) selected from the groups consisting of hydroxy, acyl, lower alkoxy, di(lower)alkylamino, carboxy, protected carboxy and aryl; orR.sup.1 is hydrogen or lower alkoxy,R.sup.2 is hydrogen,X is ##STR4## in which R.sub.a.sup.3 is lower alkanoyl and A is a group of the formula: ##STR5## and pharmaceutically acceptable salts thereof.

Abstract: A thiazole compound of allergically activity of the formula: ##STR1## wherein R.sup.1 is amino optionally having suitable substituent(s),R.sup.2 is hydrogen, lower alkyl or aryl,R.sup.3 is hydrogen, nitro, amino optionally having suitable substituent(s), hydroxy or lower alkoxy,A is lower alkylene,Q is hydrogen or halogen, anda heavy solid line means a single or double bond,or a pharmaceutically acceptable salt thereof, processes for the preparation thereof and pharmaceutical composition comprising the same.

Abstract: This invention provides a benzene-fused heterocyclic compound of the formula: ##STR1## wherein R.sup.1 is halogen, nitro, amino, hydroxy, lower alkyl, lower alkoxy or acylamino,X is --S--, ##STR2## n is an integer of 1 or 2 and A is a group of the formula: ##STR3## in which R.sup.2 is hydrogen, lower alkyl, lower alkynyl, carboxy(lower)alkyl or protected carboxy(lower)alkyl, or pharmaceutically acceptable salts thereof. This compound possesses diuretic, uricosuric, and vasodilative activities and therefore is useful as a diuretic agent, uricosuric agent and anti-hypertensive agent. This invention further provides processes for the preparation of this compound and pharmaceutical composition comprising compound of the above formula.

Abstract: This invention provides a benezene-fused heterocyclic compound of the formula: ##STR1## wherein R.sup.1 is halogen, nitro, amino, hydroxy, lower alkyl, lower alkoxy substituted by carboxy or protected carboxy, acylamino which may have lower alkyl on the amino moiety, or aryloxy which may have halogen,R.sup.2 is hydrogen or halogen,X is --O-- or ##STR2## in which R.sup.3 is hydrogen, lower alkyl or acyl and A is a group of the formula: ##STR3## in which R.sup.4 is hydrogen, lower alkenyl, lower alkynyl or alkyl which may have suitable substituent(s) selected from the groups consisting of hydroxy, acyl, lower alkoxy, di(lower)alkylamino, carboxy, protected carboxy and aryl; orR.sup.1 is hydrogen or lower alkoxy,R.sup.2 is hydrogen,X is ##STR4## in which R.sub.a.sup.3 is lower alkanoyl and A is a group of the formula: ##STR5## and pharmaceutically acceptable salts thereof.

Abstract: Pyrimidoisoquinoline/compounds of the formula: ##STR1## where R.sup.1 is H, halogen or lower alkyl, R.sup.2 is NH.sub.2, NO.sub.2 or acylamino and R.sup.3 is carboxy or protected carboxy, pharmaceutically acceptable salts thereof, and pharmaceutical compositions thereof are disclosed in this application. Also disclosed is a method of treating allergies by administering the compounds of this invention.