A phenyleneethynylene macrocycle (PEMC) is constructed that is a cyclic or polycyclic oligo (oligophenyleneethynylene-co-polyamine) where a monodispersed oligophenyleneethynylene is coupled with a polyamine. The PEMC is formed by coupling a monodispersed di-aldehyde end-capped oligophenyleneethynylene with a polyamine to form a macrocyclic imine and reducing the imine to an amine. The PEMC is useful at entering living cells for the fluorescence imaging of the living cells without toxicity to the cells.

A phenyleneethynylene macrocycle (PEMC) is constructed that is a cyclic or polycyclic oligo (oligophenyleneethynylene-co-polyamine) where a monodispersed oligophenyleneethynylene is coupled with a polyamine. The PEMC is formed by coupling a monodispersed di-aldehyde end-capped oligophenyleneethynylene with a polyamine to form a macrocyclic imine and reducing the imine to an amine. The PEMC is useful at entering living cells for the fluorescence imaging of the living cells without toxicity to the cells.

The present invention provides cyclic depsipeptides of Formula (1), stereoisomers thereof, and veterinary acceptable salts thereof

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wherein each of R.sup.1, R.sup.2, R.sup.3, R.sup.4, L.sub.1, and L.sub.2 are as defined herein. The present invention also contemplates compositions, methods of treatment, and uses as a medicament to treat an animal for an endoparasitic infection with a Formula (1) compound.

The present invention provides cyclic depsipeptides of Formula (1), stereoisomers thereof, and veterinary acceptable salts thereof

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wherein each of R.sup.1, R.sup.2, R.sup.3, R.sup.4, L.sub.1, and L.sub.2 are as defined herein. The present invention also contemplates compositions, methods of treatment, and uses as a medicament to treat an animal for an endoparasitic infection with a Formula (1) compound.

A method includes forming a photoresist layer over a substrate, wherein the photoresist layer includes a polymer, a sensitizer, and a photo-acid generator (PAG), wherein the sensitizer includes a resonance ring that includes nitrogen and at least one double bond. The method further includes performing an exposing process to the photoresist layer. The method further includes developing the photoresist layer, thereby forming a patterned photoresist layer.

The present invention relates to pharmaceutical compositions of 1,2,4-oxadiazole compounds or a pharmaceutically acceptable salt thereof of formula (I)

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In the formula Q is O, R.sub.1 is the side chain of Ser, R.sub.2 is —CO-Thr, R.sub.3 is the side chain of Asn or Glu, and R.sub.4, R.sub.5 and R.sub.6 are each H.

The present invention relates to pharmaceutical compositions of 1,2,4-oxadiazole compounds or a pharmaceutically acceptable salt thereof of formula (I)

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In the formula Q is O, R.sub.1 is the side chain of Ser, R.sub.2 is —CO-Thr, R.sub.3 is the side chain of Asn or Glu, and R.sub.4, R.sub.5 and R.sub.6 are each H.

Provided are macrocyclic compounds and compounds with two or more macrocyclic groups, iron coordinated macrocyclic compounds, and iron coordinated compounds with two or more macrocyclic groups. The iron is high-spin iron(III). The iron coordinated compounds may exhibit a negative redox potential (e.g., relative to a normal hydrogen electrode at a biologically relevant pH, for example, a pH of 6.5-7.5). The compounds can be used as MRI contrast agents.

The present invention provides cyclic depsipeptide compounds of formula (I) and compositions comprising the compounds that are effective against parasites that harm animals, including humans. The compounds and compositions may be used for combating parasites in or on animals including mammals and birds. The invention also provides for an improved method for eradicating, controlling and preventing parasite infestation in animals, including birds and mammals.

An objective of the present invention is to provide novel cyclic depsipeptide derivatives and harmful organism control agents including the same as each other. Specifically, the present invention provides compounds represented by formula (1) or stereoisomers thereof, harmful organism control agents containing them, and a process for producing them.

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