D-Aspartic acid 4-tert-butyl ester
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D-Aspartic acid 4-tert-butyl ester
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CAS No:
64960-75-4
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Formula:
C8H15NO4
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Chemical Name:
D-Aspartic acid 4-tert-butyl ester
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Synonyms:
D-ASPARTIC ACID BETA T-BUTYL ESTER MONOHYDRATE;H-D-ASP(TBU)-OH H2O;D-ASPARTIC ACID BETA T-BUTYL ESTER 1-HYDRATE;D-ASPARTIC ACID B-T-BUTYLESTER;D-Aspartic acid β-tert butyl ester;H-D-Asp(OBut)-OH;D-Aspartic acid 4-(1,1-dimethylethyl) ester;D-Aspartic acid beta-tert-butyl ester
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CAS No:
D-Aspartic acid 4-tert-butyl ester Use and Manufacturing
Compound 83-1 (1 g, 5.2 mmol) was dissolved in 10 mL of tetrahydrofuran, acetic anhydride (1.61 g, 15 mmol) was added, and the mixture was stirred at room temperature under argon atmosphere for 7 hours. The system was extracted with EA/water, after which the organic layer was separated, washed with brine, dried and concentrated to obtain 1.1 g of yellow oily Compound 83-2. MS m/z (ESI): 254.1 [M+Na]+N-Acetyl-D-alpha-asparagyl-N1-{(2S)-4-[{(1R)-1-[1-benzyl-4-(2, 5-difluorophenyl)-1H-pyrrol-2-yl]-2, 2-dimethylpropyl}(glycoloyl)amino]-1-[(2-{[(2, 5-dioxo-2, 5-dihydro-1H-pyrrol-1-yl)acetyl]amino}ethyl)amino]-1-oxobutan-2-yl}-L-aspartamide The synthesis of the title compound commenced with the reaction of 1-acetoxypyrrolidine-2, 5-dione in DMF with To a cooled (4 C) solution of
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D-Aspartic acid 4-tert-butyl ester
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