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inquiryName: L-Alaninebenzylester4-toluenesulfonate. synonym:(S)-Benzyl2-aminopropanoate4-methylbenzenesulfonate;L-Alaninebenzylester4-toluenesulfonatesalt≥99%(HPLC);L-Ala-OBzl·TosOH;ALANINE-OBZLP-TOSYLATE;H-Ala-OBzlos(Alaninebenzylesterparato
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inquiryL-alanin
toluene-4-sulfonic acid
benzyl alcohol
L-alanine benzyl ester p-toluenesulfonate
Conditions | Yield |
---|---|
In benzene for 10h; Reflux; Inert atmosphere; | 100% |
at 50 - 62℃; under 15.0015 Torr; for 5.5h; | 98.6% |
In cyclohexane; water for 4h; Dean-Stark; Reflux; | 92% |
toluene-4-sulfonic acid
L-alanine benzyl ester p-toluenesulfonate
Conditions | Yield |
---|---|
In tetrahydrofuran at 35℃; for 2h; | 88% |
H-Ala-OBzl
toluene-4-sulfonic acid
L-alanine benzyl ester p-toluenesulfonate
Conditions | Yield |
---|---|
In diethyl ether |
BOC-glycine
L-alanine benzyl ester p-toluenesulfonate
Boc-Gly-Ala-OBzl
Conditions | Yield |
---|---|
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine | 100% |
With TEA; diphenyl phosphoryl azide In N,N-dimethyl-formamide 1.) 0 deg C, 4 h; 2.) r.t., overnight; | 85% |
Stage #1: BOC-glycine; L-alanine benzyl ester p-toluenesulfonate With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane for 0.166667h; Inert atmosphere; Stage #2: With N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 24h; Inert atmosphere; |
t-Boc-L-valine
L-alanine benzyl ester p-toluenesulfonate
Boc-Val-Ala-OBzl
Conditions | Yield |
---|---|
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine | 100% |
L-N-Boc-Ala
L-alanine benzyl ester p-toluenesulfonate
N-(tert-butoxycarbonyl)-L-alanyl-L-alanine benzyl ester
Conditions | Yield |
---|---|
With triethylamine; dicyclohexyl-carbodiimide In pyridine for 5h; Ambient temperature; | 99% |
With benzotriazol-1-ol; triethylamine; dicyclohexyl-carbodiimide In N,N-dimethyl-formamide for 5h; Product distribution; Ambient temperature; other fluorinated alcohol and proton acceptor, other condensation reagents; | 98% |
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine | 96% |
L-alanine benzyl ester p-toluenesulfonate
N-tert-butyloxycarbonyl di-L-tryptophan
Boc-Trp-Trp-Ala-OBzl
Conditions | Yield |
---|---|
With 4-methyl-morpholine; benzotriazol-1-ol; dicyclohexyl-carbodiimide In tetrahydrofuran at 0℃; for 24h; pH=8; | 98% |
With 4-methyl-morpholine; benzotriazol-1-ol; dicyclohexyl-carbodiimide In tetrahydrofuran at 0 - 20℃; for 26h; pH=8; | 98% |
Conditions | Yield |
---|---|
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine In dichloromethane; water at 20℃; for 2.5h; Inert atmosphere; | 97.8% |
L-alanine benzyl ester p-toluenesulfonate
(S)-α-Tfm-Pro-L-Ala-OBn
Conditions | Yield |
---|---|
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine In N,N-dimethyl-formamide at 0 - 20℃; for 48.3h; | 95% |
carbon dioxide
L-alanine benzyl ester p-toluenesulfonate
Conditions | Yield |
---|---|
Stage #1: carbon dioxide; L-alanine benzyl ester p-toluenesulfonate With pyridine; 1,8-diazabicyclo[5.4.0]undec-7-ene In dichloromethane at -20℃; for 0.5h; Stage #2: With thionyl chloride In dichloromethane at -20 - 20℃; for 2h; Inert atmosphere; Stage #3: L-alanine benzyl ester p-toluenesulfonate With pyridine at 20℃; for 4h; Inert atmosphere; | 95% |
Conditions | Yield |
---|---|
With 1-hydroxy-7-aza-benzotriazole; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine In dichloromethane at 0 - 20℃; Inert atmosphere; | 94% |
L-alanine benzyl ester p-toluenesulfonate
N-Trityl-L-Serin-Triethylammonium-Salz
Trt-L-Ser-L-Ala-OBn
Conditions | Yield |
---|---|
With (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In chloroform at 23℃; for 12h; | 92% |
With (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In chloroform at 23℃; for 12h; | 92% |
With (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate; triethylamine In chloroform at 23℃; Inert atmosphere; | 84% |
(S)-3-hydroxy-2-(tritylamino)propanoic acid
L-alanine benzyl ester p-toluenesulfonate
Trt-L-Ser-L-Ala-OBn
Conditions | Yield |
---|---|
With (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In chloroform at 23℃; | 92% |
L-alanine benzyl ester p-toluenesulfonate
H-Ala-OBzl
Conditions | Yield |
---|---|
With triethylamine In water; toluene at 5℃; for 2.5h; | 92% |
N-picolinyl-α-aminoisobutyric acid
L-alanine benzyl ester p-toluenesulfonate
Conditions | Yield |
---|---|
With benzotriazol-1-ol; triethylamine; dicyclohexyl-carbodiimide In tetrahydrofuran; acetonitrile for 72h; Ambient temperature; | 90% |
L-alanine benzyl ester p-toluenesulfonate
methyl 3,4,6-tri-O-acetyl-2-deoxy-2-(4-nitrophenoxycarbonylamino)-β-D-glucopyranoside
Conditions | Yield |
---|---|
With pyridine; triethylamine for 24h; Ambient temperature; | 90% |
L-alanine benzyl ester p-toluenesulfonate
monensin
2-monensinamidopropanoic acid benzyl ester
Conditions | Yield |
---|---|
With 4-methyl-morpholine; benzotriazol-1-ol; dicyclohexyl-carbodiimide In tetrahydrofuran at 5℃; for 12h; | 90% |
L-alanine benzyl ester p-toluenesulfonate
O-phenyl phosphorodichloridate
phenyl(benzyloxy-L-alaninyl)phosphorochloridate
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at -78 - 20℃; for 2.5h; | 90% |
With triethylamine In dichloromethane at -78 - 20℃; for 4h; Inert atmosphere; | 87% |
With triethylamine In dichloromethane at -78 - 20℃; for 2.5h; Inert atmosphere; | 87% |
With triethylamine In dichloromethane at -78 - 20℃; |
carbon dioxide
L-alanine benzyl ester p-toluenesulfonate
(S)-tryptophan methyl ester hydrochloride
Conditions | Yield |
---|---|
Stage #1: carbon dioxide; L-alanine benzyl ester p-toluenesulfonate With pyridine; 1,8-diazabicyclo[5.4.0]undec-7-ene In dichloromethane at -20℃; for 0.5h; Stage #2: With thionyl chloride In dichloromethane at -20 - 20℃; for 2h; Inert atmosphere; Stage #3: (S)-tryptophan methyl ester hydrochloride With pyridine at 20℃; for 4h; Inert atmosphere; | 90% |
L-alanine benzyl ester p-toluenesulfonate
Fmoc-L-Gln(Trt)-OH
Fmoc-Gln(Trt)-Ala-OBzl ester
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine; HATU In tetrahydrofuran at 20℃; for 3h; Inert atmosphere; | 90% |
Stage #1: L-alanine benzyl ester p-toluenesulfonate; Fmoc-L-Gln(Trt)-OH With triethylamine In dichloromethane for 0.0833333h; Stage #2: With benzotriazol-1-ol; dicyclohexyl-carbodiimide | 79% |
N-tert-butoxycarbonyl-L-allo-threonine
L-alanine benzyl ester p-toluenesulfonate
Boc-L-aThr-L-Ala-OBn
Conditions | Yield |
---|---|
With 1-hydroxy-7-aza-benzotriazole; sodium hydrogencarbonate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane; N,N-dimethyl-formamide at -10 - 25℃; for 14h; | 89% |
1-naphthyl dichlorophosphate
L-alanine benzyl ester p-toluenesulfonate
1-naphthyl(benzoxy-L-alaninyl)-phosphorochloridate
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at -78 - 20℃; | 89% |
With triethylamine In dichloromethane at -78 - 20℃; for 3h; Inert atmosphere; | 85% |
With triethylamine In dichloromethane at -78 - 20℃; for 2.5h; | 75% |
C36H38N4O9
L-alanine benzyl ester p-toluenesulfonate
Fmoc-Asp(Bzl)-Ile-ψ(NH-CO-NH)-Ala-OBzl
Conditions | Yield |
---|---|
With 4-methyl-morpholine In N,N-dimethyl-formamide at 20℃; | 89% |
C31H30N4O8
L-alanine benzyl ester p-toluenesulfonate
Fmoc-Ser(Bzl)-Gly-ψ(NH-CO-NH)-Ala-OBzl
Conditions | Yield |
---|---|
With 4-methyl-morpholine In N,N-dimethyl-formamide at 20℃; | 89% |
C35H38N4O8
L-alanine benzyl ester p-toluenesulfonate
Fmoc-Ser(tBu)-Phe-ψ(NH-CO-NH)-Ala-OBzl
Conditions | Yield |
---|---|
With 4-methyl-morpholine In N,N-dimethyl-formamide at 20℃; | 89% |
Conditions | Yield |
---|---|
Stage #1: Z-Lys(Boc)-OH With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In dichloromethane for 0.5h; Inert atmosphere; Stage #2: L-alanine benzyl ester p-toluenesulfonate In dichloromethane at 22℃; for 4h; Inert atmosphere; | 89% |
Boc-Thr-OH
L-alanine benzyl ester p-toluenesulfonate
Boc-L-Thr-L-Ala-OBn
Conditions | Yield |
---|---|
With diphenylphosphoranyl azide; triethylamine In N,N-dimethyl-formamide at 0 - 20℃; for 24h; | 88% |
bis(trichloromethyl) carbonate
L-alanine benzyl ester p-toluenesulfonate
N-[[(1S)-1-[(benzyloxy)carbonyl]ethyl]carbamoyl]-L-tryptophan tert-butylester
Conditions | Yield |
---|---|
Stage #1: bis(trichloromethyl) carbonate; L-alanine benzyl ester p-toluenesulfonate With N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 0.0833333h; Stage #2: L-tryptophan tert-butyl ester hydrochloride With N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 0.5h; Further stages.; | 88% |
Boc-Glu(OBzl)-OH
L-alanine benzyl ester p-toluenesulfonate
tert-Butoxycarbonyl-L-glutamyl(ω-benzylester)-L-alanin-benzylester
Conditions | Yield |
---|---|
With hexachloroethane; benzotriazol-1-ol; Hexamethylphosphorous triamide In N,N-dimethyl-formamide | 87% |
With benzotriazol-1-ol; triethylamine In N,N-dimethyl-formamide at 20℃; for 24h; Condensation; | 83% |
L-alanine benzyl ester p-toluenesulfonate
(R)-α-Tfm-Pro-L-Ala-OBn
Conditions | Yield |
---|---|
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine In N,N-dimethyl-formamide at 0 - 20℃; for 24.3h; | 87% |
L-alanine benzyl ester p-toluenesulfonate
1',3'-dohexadecyl N--L-glutamate
Conditions | Yield |
---|---|
With triethylamine In ethyl acetate for 24h; Ambient temperature; | 85% |
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