Aurobindo Pharma Limited

Jagan Mohan Reddy Sanapureddy

Sivakumaran Meenakshisunderam

Shankar Reddy Budidet

Subba Reddy Danda

Ramesh Dandala

Kishore Karumanchi

Somappa Somannavar Yallappa

Nageshwar Dussa

Gowrisankar Rao Kaki

Srinivasa Rao Yatcherla

Srinivasachary Katuroju

Bhima Shankar Gangadhara

The present invention provides a process for the preparation of crystalline anhydrous compound of Formula (X), Further, the present invention relates to the use of compound of Formula (X) preparation of Raltegravir (I) or its pharmaceutically acceptable salt thereof. 

Process for the preparation of raltegravir

The present invention provides (R)-3-Amino-1-butanol (D)-tartarate (IIb); process for its preparation and its conversion to Dolutegravir. The present invention also provides an improved process for the preparation of Dolutegravir (I) or pharmaceutically acceptable salts wherein compound (XVI) is reacted with an optically active acid addition salt of (R)-3-amino-1-butanol (IIa). 

Process for the preparation of Dolutegravir

An improved process for preparing 11-cyclopropyl-5,11-dihydro-4-methyl-6H-dipyrido[3,2-b:2',3&#x2032;-e][1,4]diazepin-6-one of Formula (I). 

Process for preparing nevirapine

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Hyderabad Telangana, India

Jagan Mohan Reddy Sanapureddy