| Identification | Back Directory | [Name]
CarbaMicacid,N-[(3aS,4R,6S,6aR)-tetrahydro-6-hydroxy-2,2-diMethyl-4H-cyclopenta-1,3-dioxol-4-yl]-,phenylMethyl ester | [CAS]
274693-53-7 | [Synonyms]
Ticagrelor Impurity 138
CarbaMic acid,N-[(3aS,4R,6S,6aR)-tetrahydro-6-hydroxy-2,2-
Benzyl [(3aS,4R,6S,6aR)-6-hydroxy-2,2-dimethyltetra-hydro-3aH-cyclopenta[d][1,3]dioxol-4-yl]ca
benzyl N-[(3aS,4R,6S,6aR)-6-hydroxy-2,2-dimethyl-hexahydrocyclopenta[d][1,3]dioxol-4-yl]carbamate
benzyl((3aS,4R,6S,6aR)-6-hydroxy-2,2-dimethyltetrahydro-4H-cyclopenta[d][1,3]dioxol-4-yl)carbamate
Benzyl((3aS, 4R, 6S, 6aR)-6-hydroxy-2,2-diMethyltetrahydro-3aH-cyclopenta[1,3]-dioxol-4yl)carbaMate
((3AS 4R 6S 6AR)6-HYDROXY-2,2-DIMETHYL-TETRAHYDROCYCLOPENTA(1,3)DIOXOL 4,YL)CARBAMIC ACID BENZYL ESTER
N-[(3aS,4R,6S,6aR)-tetrahydro-6-hydroxy-2,2-diMethyl-4H-cyclopenta-1,3-dioxol-4-yl]-,phenylMethyl ester
N-[(3aS,4R,6S,6aR)-Tetrahydro-6-hydroxy-2,2-dimethyl-4H-cyclopenta-1,3-dioxol-4-yl]carbamicacid phenylmethyl ester
CarbaMicacid,N-[(3aS,4R,6S,6aR)-tetrahydro-6-hydroxy-2,2-diMethyl-4H-cyclopenta-1,3-dioxol-4-yl]-,phenylMethyl ester
Phenylmethyl ester N-[(3aS,4R,6S,6aR)-tetrahydro-6-hydroxy-2,2-dimethyl-4H-cyclopenta-1,3-dioxol-4-yl]-Carbamic acid
Benzyl((3aS,4R,6S,6aR)-6-hydroxy-2,2-dimethyltetrahydro-3aH-cyclopenta[d][1,3]dioxol-4-yl)carbamate-Tetrahydro-6-hydroxy-2,2-dimethyl-4H-cyclopenta-1,3-dioxol-4-yl]carbamic acid phenyl methyl ester | [EINECS(EC#)]
700-846-7 | [Molecular Formula]
C16H21NO5 | [MDL Number]
MFCD21362984 | [MOL File]
274693-53-7.mol | [Molecular Weight]
307.34 |
| Chemical Properties | Back Directory | [Melting point ]
117 - 119°C | [Boiling point ]
489.1±45.0 °C(Predicted) | [density ]
1.28 | [storage temp. ]
Inert atmosphere,Store in freezer, under -20°C | [solubility ]
Acetonitrile (Slightly), DMSO (Slightly), Methanol (Slightly) | [form ]
Solid | [pka]
11.41±0.60(Predicted) | [color ]
White to Off-White | [InChI]
InChI=1S/C16H21NO5/c1-16(2)21-13-11(8-12(18)14(13)22-16)17-15(19)20-9-10-6-4-3-5-7-10/h3-7,11-14,18H,8-9H2,1-2H3,(H,17,19)/t11-,12+,13+,14-/m1/s1 | [InChIKey]
VPICQZQITAJOQA-ZOBORPQBSA-N | [SMILES]
C(OCC1=CC=CC=C1)(=O)N[C@H]1[C@@]2([H])[C@@]([H])([C@@H](O)C1)OC(C)(C)O2 |
| Hazard Information | Back Directory | [Uses]
Phenylmethyl ester N-[(3aS,4R,6S,6aR)-tetrahydro-6-hydroxy-2,2-dimethyl-4H-cyclopenta-1,3-dioxol-4-yl]-Carbamic acid is a useful chiral building block. It has been used in the synthesis of all-cis carbocyclic precursor of ticagrelor via oxidation/stereoselective reduction sequences. | [Synthesis]
Step 7: To a tetrahydrofuran:water mixture of (3aR,4S,6R,6aS)-6-amino-2,2-dimethyltetrahydro-3aH-cyclopentadieno[d][1,3]dioxol-4-ol (17.0 g, 98.15 mmol, 1.00 eq.) and sodium carbonate (20.8 g, 196.24 mmol, 2.00 eq.) at 0°C (5:1, 600 mL) mixed solution, benzyl chloroformate (18.4 g, 107.86 mmol, 1.05 eq.) was slowly added. After completion of the reaction, extraction was carried out with ethyl acetate (3×200 mL) and the organic phases were combined to give the title compound N-[(3aS,4R,6S,6aR)-tetrahydro-6-hydroxy-2,2-dimethyl-4H-cyclopentaeno-1,3-dioxolan-4-yl]carbamic acid benzyl ester as a white solid (20.5 g, 68% yield) after standard post-processing. The product was characterized by 1H NMR (300 MHz, CDCl3), δ: 7.30-7.39 (m, 5H), 5.20 (s, 2H), 4.60 (d, J=5.4 Hz, 1H), 4.50 (d, J=5.4 Hz, 1H), 4.27 (s, 1H), 4.19 (d, J=5.7 Hz, 1H), 2.26 (m. 1H), 1.71 (d, J=14.4Hz, 1H), 1.47 (s, 3H), 1.28 (s, 3H). | [References]
[1] Bioorganic and Medicinal Chemistry Letters, 2007, vol. 17, # 21, p. 6013 - 6018
[2] Patent: WO2011/17108, 2011, A2. Location in patent: Page/Page column 38
[3] Bioorganic and Medicinal Chemistry Letters, 2012, vol. 22, # 11, p. 3598 - 3602
[4] Patent: WO2012/138981, 2012, A2. Location in patent: Page/Page column 38
[5] Patent: CN106279095, 2017, A. Location in patent: Paragraph 0023; 0046 |
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