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851784-82-2

851784-82-2 Structure

851784-82-2 Structure
IdentificationBack Directory
[Name]

2-(tert-butoxycarbonyl)-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylic acid
[CAS]

851784-82-2
[Synonyms]

Lifitegrast intermediate
-(Tert-Butoxycarbonyl-5,7-Dichloro-1,2,3,4-T..
2-Boc-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylic Acid
N-Boc- 5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylic acid
2-(tert-butoxycarbonyl)-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylic acid
5,7-Dichloro-3,4-dihydro-2,6(1H)-isoquinolinedicarboxylic acid 2-(1,1-dimethylethyl) ester
2,6(1H)-Isoquinolinedicarboxylic acid, 5,7-dichloro-3,4-dihydro-, 2-(1,1-dimethylethyl) ester
5,7-dichloro-2-[(2-methylpropan-2-yl)oxycarbonyl]-3,4-dihydro-1H-isoquinoline-6-carboxylic acid
[Molecular Formula]

C15H17Cl2NO4
[MDL Number]

MFCD22370640
[MOL File]

851784-82-2.mol
[Molecular Weight]

346.21
Chemical PropertiesBack Directory
[Boiling point ]

468.5±45.0 °C(Predicted)
[density ]

1.379±0.06 g/cm3(Predicted)
[storage temp. ]

Sealed in dry,Room Temperature
[solubility ]

Chloroform (Sparingly, Sonicated), Methanol (Slightly)
[form ]

Solid
[pka]

1.87±0.20(Predicted)
[color ]

White to Off-White
[InChI]

InChI=1S/C15H17Cl2NO4/c1-15(2,3)22-14(21)18-5-4-9-8(7-18)6-10(16)11(12(9)17)13(19)20/h6H,4-5,7H2,1-3H3,(H,19,20)
[InChIKey]

JXBQRXIJBFUZMR-UHFFFAOYSA-N
[SMILES]

C1C2=C(C(Cl)=C(C(O)=O)C(Cl)=C2)CCN1C(OC(C)(C)C)=O
Safety DataBack Directory
[Symbol(GHS) ]

Exclamation Mark (GHS07)
GHS07
[Signal word ]

Warning
[Hazard statements ]

H302-H315-H319-H335
[Precautionary statements ]

P261-P305+P351+P338
[REACH Registrations]

Active
[HS Code ]

2933499090
Hazard InformationBack Directory
[Description]

2-(tert-Butoxycarbonyl)-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylic Acid is a carboxylic acid derivative of tetrahydroisoquinoline with a Boc group and two chlorine atoms attached to the tetrahydroisoquinoline ring. It may exhibit various biological activities, such as anticancer, anti-inflammatory, and anticonvulsant properties, depending on the nature and position of the substituents.
[Uses]

2-(tert-Butoxycarbonyl)-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylic Acid is a reagent in the preparation of N-benzofuranylcarbonyl dichlorotetrahydroisoquinolinylcarbonylmethylsulfonyl L-phenylalanine as LFA-1 inhibitor and polymorph thereof for the treatment of LFA -1 mediated diseases.
[Synthesis]

Synthesis_851784-82-2
Boc-protection was used for the ring nitrogen in the intermediates 21 and 22.Compound 5 was deprotected with HC1 in dioxane to produce compound 23 in better than 97%yield. Boc-protection was introduced, using di-tert-butyl dicarbonate (1 .1 equivalent), and compound 21 was obtained in better than 95% yield. Compound 10 was coupled with compound 21 to obtain compound 22, using HATU and triethylamine in DMF. The product, compound 22, was obtained in quantitative yield, and greater than 90% purity. Deprotection with HC1 yielded the compound of Formula 12 in 97.4% yield.
[References]

[1] Patent: WO2005/44817, 2005, A1. Location in patent: Page/Page column 77-79
[2] Patent: WO2014/18748, 2014, A1. Location in patent: Paragraph 00118; 00119
[3] Bioorganic and Medicinal Chemistry Letters, 2010, vol. 20, # 17, p. 5269 - 5273
Spectrum DetailBack Directory
[Spectrum Detail]

2-(tert-butoxycarbonyl)-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylic acid(851784-82-2)1HNMR
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