(12) PATENT APPLICATION PUBLICATION (21) Application No. : 1357/MUM/2004 (19) INDIA (22) Date of filing of Application :17/12/2004 (43) Publication Date : 21/07/2006        Journal No. - 111   (54) Title of the invention : NOVEL SALTS OF PHARMACEUTICAL ACTIVE INGREDIENT   (51) International classification :A61K31/00 (31) Priority Document No :NA (32) Priority Date :NA (33) Name of priority country :NA (86) International Application No         Filing Date :NA :NA (87) International Publication No : NA (61) Patent of Addition to Application Number         Filing Date :NA :NA (62) Divisional to Application Number         Filing Date :NA :NA   (71)Name of Applicant :    1)CIPLA LIMITED       Address of Applicant :289, BELLASIS ROAD, MUMBAI CENTRAL, MUMBAI 400008 Maharashtra India (72)Name of Inventor :    1)PATHI SRIINIVAS LAXMINARAYAN (India)    2)KANKAN RANJENDRA NARAYANRAO (India)    3)RAO DHARMARAJ RAMACHANDRA (India) (57) Abstract : Disclosed herein is process for preparation of montelukast and its alkali and alkaline earth metal salts. The present invention also discloses the inter conversions of the said salts of montelukast.   Number of Pages = 20