L-Phenylalanine, N-[N-(5-oxo-L-prolyl)-L-phenylalanyl]- (9CI) synthesis

4synthesis methods

Product Name:L-Phenylalanine, N-[N-(5-oxo-L-prolyl)-L-phenylalanyl]- (9CI)
CAS Number:77338-34-2
Molecular formula:C23H25N3O5
Molecular Weight:423.46

2578-84-9
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L-Phenylalanine, N-[N-(5-oxo-L-prolyl)-L-phenylalanyl]- (9CI)

77338-34-2
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Yield:-

Steps:

Multi-step reaction with 4 steps
1: 85 percent / Et₃N, hydroxybenzotriazole (HOBt) / CH₂Cl₂ / 16 h
2: 45percent HBr/CH₃COOH / 0.5 h
3: Et₃N, hydroxybenzotriazole (HOBt) / dimethylformamide / 16 h
4: 87 percent / 4 N aq. NaOH / methanol / 1 h / 0 °C

References:

Lipkowski, Andrzej W.;Majewski, Tadeusz;Drabarek, Stefania [Polish Journal of Chemistry,1980,vol. 54,# 9,p. 1707 - 1712]

L-Phenylalanine, N-[N-(5-oxo-L-prolyl)-L-phenylalanyl]-, methyl ester (9CI)

77511-08-1
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77338-34-2
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References

N-(benzyloxycarbonyl)phenylalanylphenylalanine methyl ester

4892-10-8
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77338-34-2
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7524-50-7 Synthesis

7524-50-7
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References