Actavis Group Ptc Ehf

Jayesh Laljibhai Patel

Nitin Sharadchandra Pradhan

Anil Shahaji Khile

Jon Valgeirsson

Girish Dixit

Nikhil Trivedi

Provided herein are improved, commercially viable and industrially advantageous processes for the preparation of a substantially pure ticagrelor intermediate, 4,6-dichloro-5-nitro-2-(propylthio)pyrimidine, Formula (II). The intermediate is useful for preparing ticagrelor, or a pharmaceutically acceptable salt thereof in high yield and purity. 

Processes for preparing ticagrelor intermediate, 4,6-dichloro-5-nitro-2-(propylthio)pyrimidine

The present invention relates to novel and stable salt forms of quetiapine, processes for preparation, pharmaceutical compositions, and method of treating thereof. More particularly, the present invention provides novel acid addition salts of quetiapine wherein the acid counter ion is provided by an acid selected from the group consisting of benzene sulfonic acid, dibenzoyl-L-(+)-tartaric acid and di-p-toluoyl-L-(+)-tartaric acid. The present invention also provides novel polymorphic forms of quetiapine salts selected from the group consisting of quetiapine hydrobromide, quetiapine sulfate, quetiapine nitrate and quetiapine citrate.

Growing community of inventors

Bengaluru, India

Jayesh Laljibhai Patel