Abstract: The present invention provides a process of a compound of the formula (I): wherein R is heteroaryl or the like, ring A is a heteroalicyclic group or the like comprising reacting a compound of the formula (II): wherein Hal is halogen and the other symbols are the same as the above, in the presence of a sulfinic acid salt and further in the presence of an acid or a salt with an organic base, and a novel crystal form of 2-(3-isoxazolyl)-3,6,7,9-tetrahydroimidazo[4,5-d]pyrano[4,3-b]pyridine phosphate monohydrate.

Abstract: The present invention provides a process of a compound of the formula (I): 1

Abstract: A process for producing a compound of the formula (II): (wherein R1, R2, R3 and R4 are each independently hydrogen, alkyl, alkoxy or the like, R5 is alkyl or alkoxyalkyl, A is O or S, Ar is aryl or the like, * represents the position of an asymmetric carbon atom and that the compound is the (R) or (S) isomer and Q is an optical resolution reagent) comprising isolating the compound as crystals from a solution or suspension containing the compound of the formula (II) (wherein * represents that the compound is the (R) or (S) isomer or a mixture thereof and the other symbols are the same as the above).

Abstract: A programmable logic array comprises an OR circuit (67) and an AND circuit (68). A voltage lower than a power-supply voltage is applied to product term lines (57-60) from a power supply portion (69) in response to conduction of p channel transistors (31-34) by a clock signal to be precharged, and a voltage lower than the power-supply voltage is applied to output lines (54, 55) from a power supply portion (70) in response to conduction of p channel transistors (39, 40) by the clock signal. Therefore, applied voltages of the product term lines and the output lines are lowered, so that responsibility of circuit is improved, whereby a programmable logic array with a high speed operation is obtained.