Hangzhou VIWA Co., Ltd.
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   About us

VIWA pharma division is a professional supplier of active pharmaceutical ingredients and intermediates. We are specialized in R&D and custom manufacturing. Supported by our highly qualified team of professor and technicians, we have rich experience on a wide range of chemical reactions and fermentation from multi gram scale to hundred tons scale according to customers' requirement.

Our main products are cardiovascular, anti-diabetes, anti-cancer, steroid, anti-HIV and their intermediates, especially on oncology products.

Moreover, we are quite strong at regulatory issues. Our products have been marketed in USA, Europe, Latin America, India, Vietnam, Turkey, etc.
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Product List 

Ezetimibe

Application

Ezetimibe

Intermediates

R)-(+)-alpha-alpha-Diphenyl-2-Pyrrolidinemethanol


Application

Ezetimibe

CAS No.

7331-52-4

Structure

Intermediates

(S)-3-Hydroxy-gamma-butyrolactone


Application

Ezetimibe

CAS No.

70627-52-0

Structure

Intermediates

4-Benzyloxybenzylidene-(4-fluoro)aniline


Application

Ezetimibe

CAS No.

112022-83-0

Structure

Intermediates

(R)-Tetrahydro-1-methyl-1,3-diphenyl-1H,3H-pyrrolo[1,2-c][1,3,2]oxazoborole


Application

Ezetimibe, Synthesis of β-Lactams, Resolution & Pri-amines

CAS No.

99395-88-7

Intermediates

(S)-4-Phenyl-2-oxazolidinone ( Chiral )


Application

Ezetimibe

CAS No.

163222-33-1

Structure

Formula :

C 24 H 21 F 2 NO 3


 
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