There is provided a production method of a thiopyranose compound represented by the following Formula (2) by reacting a compound represented by the following Formula (1) with a sulfur compound. ##STR00001##
X represents a leaving group. A represents an oxygen atom or a sulfur atom. Further, each of R.sup.1A to R.sup.4B, R.sup.1B to R.sup.4B, and R.sup.5 represents a hydrogen atom or a specific substituent.

Disclosed herein are embodiments of aryl compounds and polymers thereof that are made using methods that do not require harsh conditions or expensive reagents. The methods disclosed herein utilize precursor compounds that can be polymerized to form polycyclic aromatic hydrocarbons and polymers, such as carbon-based polymers like nanostructures (e.g., graphene or graphene-like nanoribbons).

Disclosed herein are embodiments of aryl compounds and polymers thereof that are made using methods that do not require harsh conditions or expensive reagents. The methods disclosed herein utilize precursor compounds that can be polymerized to form polycyclic aromatic hydrocarbons and polymers, such as carbon-based polymers like nanostructures (e.g., graphene or graphene-like nanoribbons).

The present invention relates to a polyethylene glycol derivative and a preparation method thereof. A preparation process of a polyethylene glycol derivative, according to the present invention, may provide a novel polyethylene glycol derivative which can be utilized in various ways as a drug linker, and is appropriate and effective for mass production and is advantageous in reproducible mass production of high-quality products.

The present invention relates to a polyethylene glycol derivative and a preparation method thereof. A preparation process of a polyethylene glycol derivative, according to the present invention, may provide a novel polyethylene glycol derivative which can be utilized in various ways as a drug linker, and is appropriate and effective for mass production and is advantageous in reproducible mass production of high-quality products.

Provided are a methane-production inhibitor capable of inhibiting methane production for a long period of time, and a method for inhibiting methane production using the composition. A methane-production inhibitor composition contains one or more compounds selected from compounds represented by formula [I] as an effective ingredient, and a method for inhibiting methane production uses the composition. ##STR00001## (In formula [I], X represents an —OR.sub.1 group, a hydroxyl group, or a halogen atom, Y represents an —OR.sub.2 group or an —SO.sub.2R.sub.3 group, R.sub.1 represents a benzoyl group, R.sub.2 represents a methylsulfonyl group or a chloromethylsulfonyl group, and R.sub.3 represents a chloromethyl group or a hydroxymethyl group.)

Provided are a methane-production inhibitor capable of inhibiting methane production for a long period of time, and a method for inhibiting methane production using the composition. A methane-production inhibitor composition contains one or more compounds selected from compounds represented by formula [I] as an effective ingredient, and a method for inhibiting methane production uses the composition. ##STR00001## (In formula [I], X represents an —OR.sub.1 group, a hydroxyl group, or a halogen atom, Y represents an —OR.sub.2 group or an —SO.sub.2R.sub.3 group, R.sub.1 represents a benzoyl group, R.sub.2 represents a methylsulfonyl group or a chloromethylsulfonyl group, and R.sub.3 represents a chloromethyl group or a hydroxymethyl group.)

Disclosed herein are embodiments of aryl compounds and polymers thereof that are made using methods that do not require harsh conditions or expensive reagents. The methods disclosed herein utilize precursor compounds that can be polymerized to form polycyclic aromatic hydrocarbons and polymers, such as carbon-based polymers like nanostructures (e.g., graphene or graphene-like nanoribbons).

Disclosed herein are embodiments of aryl compounds and polymers thereof that are made using methods that do not require harsh conditions or expensive reagents. The methods disclosed herein utilize precursor compounds that can be polymerized to form polycyclic aromatic hydrocarbons and polymers, such as carbon-based polymers like nanostructures (e.g., graphene or graphene-like nanoribbons).

The present technology relates to novel cannabinergic nitrate esters and related analogs, process of preparation, pharmaceutical compositions and their methods of use as medicaments, pharmacological tools and/or biomarkers. The novel cannabinergic nitrate ester compounds provide medicaments useful in treating a variety of diseases and medical disorders.