摘要:
The present invention features compounds that are prodrugs of HIIV integrase inhibitors and therefore are useful in the inhibition of HIV replication, the prevention and/or treatment of infection by HIV, and in the treatment of AIDS and/or ARC.
摘要:
Novel processes and intermediates are provided according to the general reaction scheme: Formula I, II, III, IV (I), (II), (III), (IV) utilizing a ruthenium catalyst in an oxidative cleavage of the triene 4 whereby an aldehyde may be produced and optionally taken on to a carboxylic acid 5: Formula V (V)
摘要:
An ultrasonic transducer incorporated into an ultrasonic inspection apparatus for examining existence of defect in a sample dipped in water comprises a transducer main part having an oscillator which projects an ultrasonic wave to the sample, receives the reflected wave from the sample and outputs the received reflected wave as an echo signal, a transmitter substrate producing a drive pulse for emitting the ultrasonic wave to the oscillator, a receiver substrate for amplifying the echo signal, a housing for containing therein both substrates electrically connected, and connecting member for electrically connecting between a signal input/output terminal and the side of the oscillator in the transducer main part, wherein, when a maximum operational frequency of the ultrasonic wave emitted from the oscillator is referred to as fmax [MHz], the connecting member is set at a length of 100/fmax [cm] or less. Even if the sample to be examined is small, a desirable defect inspection can be achieved at an excellent examination accuracy.
摘要:
An ultrasonic transducer incorporated into an ultrasonic inspection apparatus for examining existence of defect in a sample dipped in water comprises a transducer main part having an oscillator which projects an ultrasonic wave to the sample, receives the reflected wave from the sample and outputs the received reflected wave as an echo signal, a transmitter substrate producing a drive pulse for emitting the ultrasonic wave to the oscillator, a receiver substrate for amplifying the echo signal, a housing for containing therein both substrates electrically connected, and connecting member for electrically connecting between a signal input/output terminal and the side of the oscillator in the transducer main part, wherein, when a maximum operational frequency of the ultrasonic wave emitted from the oscillator is referred to as fmax [MHz], the connecting member is set at a length of 100/fmax [cm] or less. Even if the sample to be examined is small, a desirable defect inspection can be achieved at an excellent examination accuracy.
摘要:
Novel processes and intermediates are provided according to the general reaction scheme: Formula I, II, III, IV (I), (II), (III), (IV) utilizing a ruthenium catalyst in an oxidative cleavage of the triene 4 whereby an aldehyde may be produced and optionally taken on to a carboxylic acid 5: Formula V (V)
摘要:
The present invention features compounds that are prodrugs of HIIV integrase inhibitors and therefore are useful in the inhibition of HIV replication, the prevention and/or treatment of infection by HIV, and in the treatment of AIDS and/or ARC.
摘要:
The present invention is directed to a process for the preparation of a compound of formula 1b which compound is useful as a prodrug of HIV integrase inhibitors and therefore is useful in the inhibition of HIV replication, the prevention and/or treatment of infection by HIV, and in the treatment of AIDS and/or ARC. The process includes the steps of a) brominating a compound of formula P-7 to form a compound of formula P-8, b) treating a compound of formula P-8 with NaIO4 to form a compound of formula P-9, c) reacting a compound of formula P-9 with [(2R)-pyrrolidinylmethyl]amine of formula to form a compound of formula P-10, d) reacting a compound of formula P-10 with 2, 4-difluorobenzylamine to form a compound of formula P-11, e) treating a compound of P-11 with palladium on carbon and ammonium hydroxide to form a compound of formula 1a, and f) treating a compound of formula 1a with NaOH and ethanol to form a compound of formula 1b. The structures of the above mentioned compounds are disclosed in the specification.
摘要:
The present invention features compounds that are prodrugs of HIV integrase inhibitors and therefore are useful in the delivery of compounds for the inhibition of HIV replication, the prevention and/or treatment of infection by HIV, and in the treatment of AIDS and/or ARC. For example, the present invention includes methyl 3-(benzyloxy)-1-(2,2-dihydroxyethyl)-4-oxo-1,4-dihydropyridine-2 -carboxylate of the formula P-8: and processes for the preparation thereof.
摘要:
The present invention features compounds that are prodrugs of HIV integrase inhibitors and therefore are useful in the delivery of compounds for the inhibition of HIV replication, the prevention and/or treatment of infection by HIV, and in the treatment of AIDS and/or ARC.