The invention discloses a method for preparation of fluoro, chloro and fluorochloro alkylated compounds by homogeneous Pd catalyzed fluoro, chloro and fluorochloro alkylation with fluoro, chloro and fluorochloroalkyl halides in the presence of di(1-adamantyl)-n-butylphosphine and in the presence of 2,2,6,6-tetramethylpiperidine 1-oxyl.

The invention discloses a method for preparation of alkylated or fluoro, chloro and fluorochloro alkylated compounds by a heterogeneous Pt/C-catalyzed alkylation or fluoro, chloro and fluorochloro alkylation with alkyl halides or with fluoro, chloro and fluorochloro alkyl halides in the presence of Cs.sub.2CO.sub.3 or CsHCO.sub.3.

The invention discloses a method for preparation of alkylated or fluoro, chloro and fluorochloro alkylated compounds by a heterogeneous Pt/C-catalyzed alkylation or fluoro, chloro and fluorochloro alkylation with alkyl halides or with fluoro, chloro and fluorochloro alkyl halides in the presence of Cs.sub.2CO.sub.3 or CsHCO.sub.3.

The invention discloses a method for preparation of alkylated or fluoro, chloro and fluorochloro alkylated compounds by a heterogeneous Pt/C-catalyzed alkylation or fluoro, chloro and fluorochloro alkylation with alkyl halides or with fluoro, chloro and fluorochloro alkyl halides in the presence of Cs.sub.2C0.sub.3 or CsHC0.sub.3.

The invention discloses a method for preparation of alkylated or fluoro, chloro and fluorochloro alkylated compounds by a heterogeneous Pt/C-catalyzed alkylation or fluoro, chloro and fluorochloro alkylation with alkyl halides or with fluoro, chloro and fluorochloro alkyl halides in the presence of Cs.sub.2C0.sub.3 or CsHC0.sub.3.

Provide in the present invention is a method for preparing canagliflozin intermediate 2-(2-methyl-5-bromobenzyl)-5-(4-fluorobenzene)thiophene. The method comprises a compound, shown as formula (II), of (5-bromo-2-methylphenyl)[5-(p-fluorophenyl)thiophene-2-yl]ketone being reduced under the action of a directly used borane solution or borane locally produced by reacting alkali metal borohydride with a Lewis acid in a suitable solvent and at a suitable temperature, so as to obtain the compound of formula (I) of 2-(2-methyl-5-bromobenzyl)-5-(4-fluorobenzene)thiophene. The preparation method avoids the use of expensive reductive agents and guarantees the complete conversion of raw materials, wherein the post-treatment is simple, the purity of product obtained is high, the reaction yield is high, in the preparation method is simple and convenient, and can easily be used in industry.

Provide in the present invention is a method for preparing canagliflozin intermediate 2-(2-methyl-5-bromobenzyl)-5-(4-fluorobenzene)thiophene. The method comprises a compound, shown as formula (II), of (5-bromo-2-methylphenyl)[5-(p-fluorophenyl)thiophene-2-yl]ketone being reduced under the action of a directly used borane solution or borane locally produced by reacting alkali metal borohydride with a Lewis acid in a suitable solvent and at a suitable temperature, so as to obtain the compound of formula (I) of 2-(2-methyl-5-bromobenzyl)-5-(4-fluorobenzene)thiophene. The preparation method avoids the use of expensive reductive agents and guarantees the complete conversion of raw materials, wherein the post-treatment is simple, the purity of product obtained is high, the reaction yield is high, in the preparation method is simple and convenient, and can easily be used in industry.

The present invention relates generally to compositions and methods for treating neurodegenerative diseases and disorders, particularly ophthalmic diseases and disorders. Provided herein are substituted 3-phenylpropylamine derivative compounds and pharmaceutical compositions comprising said compounds. The subject compositions are useful for treating and preventing ophthalmic diseases and disorders, including age-related macular degeneration (AMD) and Stargardt's Disease.

Antibacterial and or adjuvant compounds or pharmaceutically acceptable salts thereof according to Formula (I) are provided. Formula (I) in which R.sub.1-6 have the meanings described herein. Other methods of use are also provided.

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Antibacterial and or adjuvant compounds or pharmaceutically acceptable salts thereof according to Formula (I) are provided. Formula (I) in which R.sub.1-6 have the meanings described herein. Other methods of use are also provided.

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