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inquiryHello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai
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inquiryProduct Details Grade: pharmaceutical grade Purity:99%+ ProductionCapacity: 1000 Kilogram/Month Scope of use: For scientific research only(The product must be used legally) Our Advantage 1. Best quality with competitive price. 2. Quick shipping,
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inquirycyclo(L-tyrosine(OBn)-glycine)
3-(S)-(4-hydroxy-benzyl)-piperazine-2,5-dione
Conditions | Yield |
---|---|
With palladium 10% on activated carbon; hydrogen In methanol at 20℃; | 92% |
3-(S)-(4-hydroxy-benzyl)-piperazine-2,5-dione
Conditions | Yield |
---|---|
With 4-methyl-morpholine; acetic acid In iso-butanol at 120℃; for 3h; | 43% |
Boc-Tyr-Gly-OEt
3-(S)-(4-hydroxy-benzyl)-piperazine-2,5-dione
Conditions | Yield |
---|---|
With 4-methyl-morpholine; hydrogenchloride; acetic acid 1.) dioxane, r.t., 30 min; 2.) 2-butanol, reflux, 3 h; Yield given. Multistep reaction; |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 86 percent / N,N'-dicyclohexylcarbodiimide, 1-hydroxybenztriazole 2: 1.) 4N HCl; 2.) N-methylmorpholine / 2.) 0.1M AcOH / 1.) dioxane, r.t., 30 min; 2.) 2-butanol, reflux, 3 h View Scheme | |
Multi-step reaction with 3 steps 1: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; benzotriazol-1-ol; 4-methyl-morpholine / N,N-dimethyl-formamide / 20 °C / Inert atmosphere 2: dichloromethane / 1 h / 20 °C / Inert atmosphere 3: acetic acid; 4-methyl-morpholine / iso-butanol / 3 h / 120 °C View Scheme |
FLQLYGLPETGY-isoacyl-Hse(Bz)-NH2
GGGGAEW-NH2
A
C22H26N4O6
B
C11H14N2O3
C
3-(S)-(4-hydroxy-benzyl)-piperazine-2,5-dione
Conditions | Yield |
---|---|
With recombinant sortase A In aq. buffer at 21℃; pH=8; |
BOC-Tyr(OBzl)-Gly-OEt
3-(S)-(4-hydroxy-benzyl)-piperazine-2,5-dione
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: water; methanol / 0.17 h / 170 °C / Microwave irradiation 2: hydrogen; palladium 10% on activated carbon / methanol / 20 °C View Scheme |
O-benzyl-N-tert-butoxycarbonyl-L-tyrosine
3-(S)-(4-hydroxy-benzyl)-piperazine-2,5-dione
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate; N-ethyl-N,N-diisopropylamine / dichloromethane / 20 °C 2: water; methanol / 0.17 h / 170 °C / Microwave irradiation 3: hydrogen; palladium 10% on activated carbon / methanol / 20 °C View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: dichloromethane / 1 h / 20 °C / Inert atmosphere 2: acetic acid; 4-methyl-morpholine / iso-butanol / 3 h / 120 °C View Scheme |
L-tyrosine ethyl ester
chloroacetyl chloride
3-(S)-(4-hydroxy-benzyl)-piperazine-2,5-dione
Conditions | Yield |
---|---|
With ammonia Multistep reaction; |
prenyl bromide
3-(S)-(4-hydroxy-benzyl)-piperazine-2,5-dione
cyclo-(glycyl-t-tyrosyl) 4,4-dimethylallyl ether
Conditions | Yield |
---|---|
With caesium carbonate; tetra-(n-butyl)ammonium iodide In N,N-dimethyl-formamide at 20℃; for 12h; | 73% |
With potassium carbonate In N,N-dimethyl-formamide at 20℃; | 46% |
With sodium hydride In dimethyl sulfoxide 0 deg C, then room t., 20 h; | 23 mg |
dimethyl sulfate
3-(S)-(4-hydroxy-benzyl)-piperazine-2,5-dione
3-<(4-methoxyphenyl)methyl>-1,4-dimethylpiperazine-2,5-dione
Conditions | Yield |
---|---|
With sodium hydride DMSO-THF; Multistep reaction; |
3-(S)-(4-hydroxy-benzyl)-piperazine-2,5-dione
methyl iodide
3-<(4-methoxyphenyl)methyl>-1,4-dimethylpiperazine-2,5-dione
Conditions | Yield |
---|---|
With sodium hydride In dimethyl sulfoxide for 18h; Ambient temperature; |
3-(S)-(4-hydroxy-benzyl)-piperazine-2,5-dione
Conditions | Yield |
---|---|
Stage #1: 3-(S)-(4-hydroxy-benzyl)-piperazine-2,5-dione With hydrogenchloride In water at 125℃; for 24h; Stage #2: N-(2,4-dinitro-5-fluorophenyl)-L-alaninamide With sodium hydrogencarbonate In water; acetone at 40℃; for 1h; |
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