- LifitegrastImpurity40
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- $0.00 / 25KG
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2025-12-01
- CAS:851784-82-2
- Min. Order: 1KG
- Purity: 98%
- Supply Ability: 1000KG
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| | 2-(tert-butoxycarbonyl)-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylic acid Basic information |
| Product Name: | 2-(tert-butoxycarbonyl)-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylic acid | | Synonyms: | 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-Boc-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylic Acid;Lifitegrast intermediate;N-Boc- 5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylic acid;2,6(1H)-Isoquinolinedicarboxylic acid, 5,7-dichloro-3,4-dihydro-, 2-(1,1-dimethylethyl) ester;-(Tert-Butoxycarbonyl-5,7-Dichloro-1,2,3,4-T..;5,7-dichloro-2-[(2-methylpropan-2-yl)oxycarbonyl]-3,4-dihydro-1H-isoquinoline-6-carboxylic acid | | CAS: | 851784-82-2 | | MF: | C15H17Cl2NO4 | | MW: | 346.21 | | EINECS: | | | Product Categories: | 851784-82-2 | | Mol File: | 851784-82-2.mol |  |
| | 2-(tert-butoxycarbonyl)-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylic acid Chemical Properties |
| 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 |
| | 2-(tert-butoxycarbonyl)-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylic acid Usage And Synthesis |
| 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 | 
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 |
| | 2-(tert-butoxycarbonyl)-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylic acid Preparation Products And Raw materials |
| Raw materials | 5,7-dichloro-3,4-dihydro-2,6(1H)-Isoquinolinedicarboxylic acid, 2-(1,1-dimethylethyl) 6-methyl ester | | Preparation Products | methyl 5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylate-->L-Phenylalanine, N-[(5,7-dichloro-1,2,3,4-tetrahydro-6-isoquinolinyl)carbonyl]-3-(methylsulfonyl)-, phenylmethyl ester, hydrochloride (1:1) |
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