lifitegrast and its Impurities
lifitegrast is used to treat the signs and symptoms of dry eye disease. It is an FDA approved drug indicated. Lifitegrast reduces inflammation by inhibiting inflammatory cell binding. Reference standards of Lifitegrast API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


(S)-2-(5,7-Dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoic Acid Hydrochloride
(S)-2-(5,7-Dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoic Acid Hydrochloride
Catalogue No.:PA 39 04510
CAS :
2271054-95-4
Molecular Formula : C20H21Cl3N2O5S
Molecular Weight : 507.81


(S)-2-(2-Acetyl-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoic Acid
(S)-2-(2-Acetyl-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoic Acid
Catalogue No.:PA 39 04520
CAS :
NA
Molecular Formula : C22H22Cl2N2O6S
Molecular Weight : 513.39


(S)-2-(2-(Benzofuran-6-carbonyl)-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoic Acid
(S)-2-(2-(Benzofuran-6-carbonyl)-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoic Acid
Catalogue No.:PA 39 04540
CAS :
2295862-00-7
Molecular Formula : C29H26N2O7S
Molecular Weight : 546.59


Ethyl (S)-2-(2-(benzofuran-6-carbonyl)-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoate
Ethyl (S)-2-(2-(benzofuran-6-carbonyl)-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoate
Catalogue No.:PA 39 04550
CAS :
2295862-24-5
Molecular Formula : C31H28Cl2N2O7S
Molecular Weight : 643.53


Benzyl (S)-2-(2-(benzofuran-6-carbonyl)-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoate
Benzyl (S)-2-(2-(benzofuran-6-carbonyl)-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoate
Catalogue No.:PA 39 04560
CAS :
1194550-67-8
Molecular Formula : C36H30Cl2N2O7S
Molecular Weight : 705.6


Methyl (S)-2-(2-(benzofuran-6-carbonyl)-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoate
Methyl (S)-2-(2-(benzofuran-6-carbonyl)-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoate
Catalogue No.:PA 39 04570
CAS :
2295862-29-0
Molecular Formula : C30H26Cl2N2O7S
Molecular Weight : 629.51


(S)-2-(2-(Benzofuran-6-carbonyl)-5-chloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoic acid
(S)-2-(2-(Benzofuran-6-carbonyl)-5-chloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoic acid
Catalogue No.:PA 39 0041001
CAS :
2322380-15-2
Molecular Formula : C29H25ClN2O7S
Molecular Weight : 581.04


(S)-2-(2-(benzofuran-6-carbonyl)-7-chloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoic acid
(S)-2-(2-(benzofuran-6-carbonyl)-7-chloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoic acid
Catalogue No.:PA 39 0041002
CAS :
2322380-18-5
Molecular Formula : C29H25ClN2O7S
Molecular Weight : 581.04


5-Bromo-2-(tert-butoxycarbonyl)-7-chloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylic acid
5-Bromo-2-(tert-butoxycarbonyl)-7-chloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylic acid
Catalogue No.:PA 39 0041003
CAS :
2832127-60-1
Molecular Formula : C15H17BrClNO4
Molecular Weight : 390.66


7-Bromo-2-(tert-butoxycarbonyl)-5-chloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylic acid
7-Bromo-2-(tert-butoxycarbonyl)-5-chloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylic acid
Catalogue No.:PA 39 0041004
CAS :
2832100-74-8
Molecular Formula : C15H17BrClNO4
Molecular Weight : 390.66


(S)-2-(2-(Benzofuran-6-carbonyl)-5-bromo-7-chloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methyldimethylene-l6-sulfanyl)phenyl)propanoic acid
(S)-2-(2-(Benzofuran-6-carbonyl)-5-bromo-7-chloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methyldimethylene-l6-sulfanyl)phenyl)propanoic acid
Catalogue No.:PA 39 0041005
CAS :
NA
Molecular Formula : C31H28BrClN2O5S
Molecular Weight : 655.99


(S)-2-(2-(Benzofuran-6-carbonyl)-7-bromo-5-chloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methyldimethylene-l6-sulfanyl)phenyl)propanoic acid
(S)-2-(2-(Benzofuran-6-carbonyl)-7-bromo-5-chloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methyldimethylene-l6-sulfanyl)phenyl)propanoic acid
Catalogue No.:PA 39 0041006
CAS :
NA
Molecular Formula : C31H28BrClN2O5S
Molecular Weight : 655.99


(S)-2-(2-(Benzofuran-6-carbonyl)-5,7-dichloro-1,2-dihydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoic acid
(S)-2-(2-(Benzofuran-6-carbonyl)-5,7-dichloro-1,2-dihydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoic acid
Catalogue No.:PA 39 0041007
CAS :
NA
Molecular Formula : C29H22Cl2N2O7S
Molecular Weight : 613.46


(S)-2-(2-(Benzofuran-6-carbonyl)-5,7-dichloro-1-oxo-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoic acid
(S)-2-(2-(Benzofuran-6-carbonyl)-5,7-dichloro-1-oxo-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoic acid
Catalogue No.:PA 39 0041008
CAS :
NA
Molecular Formula : C29H22Cl2N2O8S
Molecular Weight : 629.46


(S)-2-(2-(Benzofuran-6-carbonyl )-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-bromophenyl)propanoic acid
(S)-2-(2-(Benzofuran-6-carbonyl )-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-bromophenyl)propanoic acid
Catalogue No.:PA 39 0041009
CAS :
NA
Molecular Formula : C28H21BrCl2N2O5
Molecular Weight : 616.29


(S)-2-((S)-2-(2-(Benzofuran-6-carbonyl)5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanamido)-3-(3(methylsulfonyl)phenyl)propanoicacid
(S)-2-((S)-2-(2-(Benzofuran-6-carbonyl)5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanamido)-3-(3(methylsulfonyl)phenyl)propanoicacid
Catalogue No.:PA 39 0041010
CAS :
2641788-18-1
Molecular Formula : C39H35Cl2N3O10S2
Molecular Weight : 840.74


tert-Butyl (S)-6-((1-(benzyloxy)-3-(3-(methylsulfonyl)phenyl)-1-oxopropan-2-yl)carbamoyl)-5,7-dichloro-3,4-dihydroisoquinoline-2(1H)-carboxylate
tert-Butyl (S)-6-((1-(benzyloxy)-3-(3-(methylsulfonyl)phenyl)-1-oxopropan-2-yl)carbamoyl)-5,7-dichloro-3,4-dihydroisoquinoline-2(1H)-carboxylate
Catalogue No.:PA 39 0041013
CAS :
1194550-61-2
Molecular Formula : C32H34Cl2N2O7S
Molecular Weight : 661.59


Benzyl (S)-2-(5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoate
Benzyl (S)-2-(5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoate
Catalogue No.:PA 39 0041014
CAS :
1194864-18-0
Molecular Formula : C27H26Cl2N2O5S
Molecular Weight : 561.47


(S)-2-(5,7-Dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoic Acid
(S)-2-(5,7-Dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoic Acid
Catalogue No.:PA 39 0041016
CAS :
851785-70-1
Molecular Formula : C20H20Cl2N2O5S
Molecular Weight : 471.35


tert-Butyl (S)-2-(2-(benzofuran-6-carbonyl)-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoate
tert-Butyl (S)-2-(2-(benzofuran-6-carbonyl)-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoate
Catalogue No.:PA 39 0041018
CAS :
2414639-05-5
Molecular Formula : C33H32Cl2N2O7S
Molecular Weight : 671.59


(2S)-2-(2-(Benzofuran-6-carbonyl)-5,7-dichloro-1-hydroxy-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoic Acid
(2S)-2-(2-(Benzofuran-6-carbonyl)-5,7-dichloro-1-hydroxy-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoic Acid
Catalogue No.:PA 39 0041019
CAS :
NA
Molecular Formula : C29H24Cl2N2O8S
Molecular Weight : 631.48


(2S)-2-(5,7-Dichloro-2-(2,3-dihydroxy-2,3-dihydrobenzofuran-6-carbonyl)-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoic Acid
(2S)-2-(5,7-Dichloro-2-(2,3-dihydroxy-2,3-dihydrobenzofuran-6-carbonyl)-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoic Acid
Catalogue No.:PA 39 0041020
CAS :
NA
Molecular Formula : C29H26Cl2N2O9S
Molecular Weight : 649.49


(2S)-2-(5,7-Dichloro-2-(1a,6b-dihydrooxireno[2,3-b]benzofuran-4-carbonyl)-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoic Acid
(2S)-2-(5,7-Dichloro-2-(1a,6b-dihydrooxireno[2,3-b]benzofuran-4-carbonyl)-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoic Acid
Catalogue No.:PA 39 0041021
CAS :
NA
Molecular Formula : C29H24Cl2N2O8S
Molecular Weight : 631.48


(S)-2-(5,7-Dichloro-2-(4-formyl-3-hydroxybenzoyl)-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoic Acid
(S)-2-(5,7-Dichloro-2-(4-formyl-3-hydroxybenzoyl)-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoic Acid
Catalogue No.:PA 39 0041023
CAS :
NA
Molecular Formula : C28H24Cl2N2O8S
Molecular Weight : 619.47