Methyl (2s)-2-amino-3-(3,4-dihydroxyphenyl)propanoate 1. Guaranteed purity; 2. Large quantity in stock; 3. Largest manufacturer; 4. Best service after shipment with email; 5. High quality & competitive price; Appearance:White Powd
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inquiry(S)-2-AMINO-3-(3,4-DIHYDROXY-PHENYL)-PROPANOIC ACID METHYL ESTERCASAppearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
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Methyl (2s)-2-amino-3-(3,4-dihydroxyphenyl)propanoateAppearance:ask Storage:Keep in dry and cool condition Package:foil aluminium bag/vacuum packing Application:intermediates Transportation:By express (Door to door) such as FEDEX, DHL, EMS for small
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inquiryStock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai
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inquiryfactory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
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inquiryShanghai, Run-Biotech Co., Ltd is a leading domestic pharmaceutical, biopharmaceutical, and health care products R & D outsourcing services company. As an innovation-driven and customer-focused company, Run Biotech provides a broad and integrated por
Methyl (2s)-2-amino-3-(3,4-dihydroxyphenyl)propanoateAppearance:ask Storage:Keep in dry and cool condition Package:foil aluminium bag/vacuum packing Application:intermediates Transportation:by air or by sea
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inquiryWe are a trading company aiming at providing high-quality services to customers. Established for many years, with good reputation in the industry Storage:Sealed and preserved Application:Fine chemical intermediates, used as the main raw material for
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inquiryAdvanced and completed testing facilities Application:intermediates
Methyl (2s)-2-amino-3-(3,4-dihydroxyphenyl)propanoateAppearance:ask Storage:Keep in dry and cool condition Package:foil aluminium bag/vacuum packing Application:intermediates Transportation:by air or by sea
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inquiryMethyl (2s)-2-amino-3-(3,4-dihydroxyphenyl)propanoate Application:Methyl (2s)-2-amino-3-(3,4-dihydroxyphenyl)propanoate
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inquiryConditions | Yield |
---|---|
With thionyl chloride at 0 - 20℃; Inert atmosphere; | 100% |
With thionyl chloride Reflux; | 90% |
With hydrogenchloride |
Conditions | Yield |
---|---|
With 1,3,6,8-tetra-n-butylpyrimido<5,4-g>pteridine-2,4,5,7(1H,3H,6H,8H)-tetrone 10-oxide In acetonitrile for 0.666667h; Irradiation; | 25% |
(+/-)-3-(3,4-dihydroxyphenyl)-2-methyl-DL-alanine
A
levodopa
B
L-DOPA methyl ester
C
(R)-(3,4-dihydroxyphenyl)alanine methyl ester
Conditions | Yield |
---|---|
With Alcalase; water In tert-butyl alcohol at 25℃; for 2.5h; pH=8.5; kinetic resolution; Title compound not separated from byproducts; |
N-[(phenylmethoxy)carbonyl]-3-hydroxy-O-(phenylmethyl)-L-tyrosine methyl ester
L-DOPA methyl ester
Conditions | Yield |
---|---|
With hydrogen; palladium on activated charcoal In dichloromethane |
L-DOPA methyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 453 mg / NH3 / CH2Cl2; methanol / 1 h 2: H2 / Pd/C / CH2Cl2 View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1: 67 percent / AlCl3 / nitrobenzene / 6 h / 100 °C 2: 74 percent / SOCl2 / Heating 3: 93 percent / aq. Na2CO3 / diethyl ether / 3 h / 25 °C 4: 60 percent / K2CO3; (n-Bu)4NI / dimethylformamide / 6 h / 20 °C 5: mCPBA / CH2Cl2 / 40 °C 6: 453 mg / NH3 / CH2Cl2; methanol / 1 h 7: H2 / Pd/C / CH2Cl2 View Scheme |
L-3-(3-acetyl-4-hydroxyphenyl)-N-(benzyloxycarbonyl)alanine methyl ester
L-DOPA methyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 60 percent / K2CO3; (n-Bu)4NI / dimethylformamide / 6 h / 20 °C 2: mCPBA / CH2Cl2 / 40 °C 3: 453 mg / NH3 / CH2Cl2; methanol / 1 h 4: H2 / Pd/C / CH2Cl2 View Scheme |
(S)-3-(3-acetyl-4-hydroxyphenyl)-2-aminopropanoic acid hydrochloride
L-DOPA methyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: 74 percent / SOCl2 / Heating 2: 93 percent / aq. Na2CO3 / diethyl ether / 3 h / 25 °C 3: 60 percent / K2CO3; (n-Bu)4NI / dimethylformamide / 6 h / 20 °C 4: mCPBA / CH2Cl2 / 40 °C 5: 453 mg / NH3 / CH2Cl2; methanol / 1 h 6: H2 / Pd/C / CH2Cl2 View Scheme |
methyl (S)-3-(3-acetyl-4-hydroxyphenyl)-2-aminopropanoate monohydrochloride
L-DOPA methyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: 93 percent / aq. Na2CO3 / diethyl ether / 3 h / 25 °C 2: 60 percent / K2CO3; (n-Bu)4NI / dimethylformamide / 6 h / 20 °C 3: mCPBA / CH2Cl2 / 40 °C 4: 453 mg / NH3 / CH2Cl2; methanol / 1 h 5: H2 / Pd/C / CH2Cl2 View Scheme |
L-3-(3-acetyl-4-(benzyloxy)phenyl)-N-(benzyloxycarbonyl)alanine methyl ester
L-DOPA methyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: mCPBA / CH2Cl2 / 40 °C 2: 453 mg / NH3 / CH2Cl2; methanol / 1 h 3: H2 / Pd/C / CH2Cl2 View Scheme |
Conditions | Yield |
---|---|
With thionyl chloride In methanol for 18h; |
methyl (S)-2-(tert-butoxycarbonylamino)-3-(3,4-dihydroxyphenyl)propanoate
L-DOPA methyl ester
Conditions | Yield |
---|---|
With hydrogenchloride In ethyl acetate |
Conditions | Yield |
---|---|
With trifluoroacetic acid In toluene at 85℃; for 2h; Pictet-Spegler condensation; | 98% |
L-DOPA methyl ester
3,4,5-trimethoxy-benzaldehyde
(1S,3S)-6,7-Dihydroxy-1-(3,4,5-trimethoxy-phenyl)-1,2,3,4-tetrahydro-isoquinoline-3-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With sodium acetate In acetic acid for 18h; Ambient temperature; | 95% |
di-tert-butyl dicarbonate
L-DOPA methyl ester
methyl (S)-2-(tert-butoxycarbonylamino)-3-(3,4-dihydroxyphenyl)propanoate
Conditions | Yield |
---|---|
With triethylamine In methanol at 20℃; | 95% |
With sodium hydrogencarbonate In tetrahydrofuran at 0 - 20℃; for 2h; Product distribution / selectivity; | 90% |
With N-ethyl-N,N-diisopropylamine In tetrahydrofuran at 20℃; for 1h; | 13.4 g |
di-tert-butyl dicarbonate
L-DOPA methyl ester
(S)-(+)-2-tert-butoxycarbonylamino-3-(3,4-dimethoxyphenyl)propionic acid methyl ester
Conditions | Yield |
---|---|
Stage #1: L-DOPA methyl ester With thionyl chloride In methanol at 50℃; for 3h; Inert atmosphere; Cooling with ice; Stage #2: di-tert-butyl dicarbonate With sodium hydrogencarbonate In tetrahydrofuran at 20℃; for 1h; Cooling with ice; Stage #3: With potassium carbonate; dimethyl sulfate In acetone at 20℃; Reflux; | 94.4% |
L-DOPA methyl ester
(3aR,6R,6aR)-2,2-dimethyl-6-(tosyloxymethyl)-tetrahydro-2H-furo[3,4-d]-1,3-dioxol-4-ol
C18H23NO7
Conditions | Yield |
---|---|
In dichloromethane at 20℃; for 10h; Pictet-Spengler Synthesis; Inert atmosphere; diastereoselective reaction; | 88% |
L-DOPA methyl ester
chloroformic acid ethyl ester
(S)-3-(3,4-Dihydroxy-phenyl)-2-ethoxycarbonylamino-propionic acid methyl ester
Conditions | Yield |
---|---|
With iPrEtN In dichloromethane | 78% |
Conditions | Yield |
---|---|
In dichloromethane at 20℃; for 47h; Pictet-Spengler Synthesis; Inert atmosphere; diastereoselective reaction; | 78% |
C23H17N3O4
L-DOPA methyl ester
methyl (2S)-3-(3,4-dihydroxyphenyl)-2-[(2-{3-[4-(1H-3-indolyl)-1-methyl-2,5-dioxo-2,5-dihydro-1H-3-pyrrolyl]-1H-1-indolyl}acetyl)amino]propanoate
Conditions | Yield |
---|---|
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; | 73% |
1-pyrenemethanol
L-DOPA methyl ester
1,1'-carbonyldiimidazole
N-[(pyren-1-yl)methoxycarbonyl]-L-3,4-dihydroxyphenylalanine methyl ester
Conditions | Yield |
---|---|
Stage #1: 1-pyrenemethanol; 1,1'-carbonyldiimidazole In N,N-dimethyl-formamide at 0 - 20℃; for 1h; Stage #2: L-DOPA methyl ester In N,N-dimethyl-formamide for 12h; | 40% |
L-DOPA methyl ester
4'-O-demethyl-4β-(4''-carboxyanilino)-4-desoxypodophyllotoxin
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In tetrahydrofuran at 20℃; | 33% |
Conditions | Yield |
---|---|
With trifluoroacetic acid In dichloromethane at 20℃; for 6h; Pictet-Spengler condensation; | A 29% B 19% C n/a D n/a |
Conditions | Yield |
---|---|
With trifluoroacetic acid In dichloromethane at 20℃; for 6h; Pictet-Spengler condensation; | A 28% B 23% C n/a D n/a |
L-DOPA methyl ester
Conditions | Yield |
---|---|
With trifluoroacetic acid In dichloromethane at 20℃; for 6h; Pictet-Spengler condensation; | A 25% B 26% |
3-(benzyloxycarbonylamino)propanoic acid
L-DOPA methyl ester
β-alanyl-L-dopa
Conditions | Yield |
---|---|
(i) Et3N, POCl3, (ii) aq. NaOH, (iii) H2, Pd-C; Multistep reaction; |
3-(4-iodophenyl)propionic acid
L-DOPA methyl ester
(S)-3-(3,4-Dihydroxy-phenyl)-2-[3-(4-iodo-phenyl)-propionylamino]-propionic acid methyl ester
Conditions | Yield |
---|---|
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In N,N-dimethyl-formamide |
L-DOPA methyl ester
sodium 3-(4-methoxyphenyl)oxiran-2-carboxylate
(1S,3S)-6,7-Dihydroxy-1-(4-methoxy-benzyl)-1,2,3,4-tetrahydro-isoquinoline-3-carboxylic acid methyl ester
(1S,3R)-6,7-Dihydroxy-1-(4-methoxy-benzyl)-1,2,3,4-tetrahydro-isoquinoline-3-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With acetic acid In water at 35℃; for 36h; | A 145 mg B 45 mg |
Conditions | Yield |
---|---|
With water; sodium chloride In dimethyl sulfoxide at 37℃; Rate constant; also human plasma as reagent; | |
With sodium carbonate In acetonitrile for 15h; | |
With potassium hydroxide In methanol |
L-DOPA methyl ester
3-(4-fluoro-3-nitrophenyl)propanoic acid
(2S)-methyl 3-(3,4-dihydroxyphenyl)-2-[3-(4-fluoro-3-nitrophenyl)propionylamino]propionate
Conditions | Yield |
---|---|
With 1.) TMS-X Yield given. Multistep reaction; |
L-DOPA methyl ester
(R)-N-(tert-butoxycarbonyl)-4-fluoro-3-nitrophenylalanine
methyl N-[N-(tert-butyloxycarbonyl)-L-(3,4-dihydroxyphenylalanyl)]-D-4-fluoro-3-nitrophenylalaninate
Conditions | Yield |
---|---|
With 1.) TMS-X Yield given. Multistep reaction; |
L-DOPA methyl ester
methyl N-[N-(tert-butyloxycarbonyl)-L-(3,4-dihydroxyphenylalanyl)]-L-4-fluoro-3-nitrophenylalanine
Conditions | Yield |
---|---|
With 1.) TMS-X Yield given. Multistep reaction; |
L-DOPA methyl ester
Conditions | Yield |
---|---|
With sodium periodate In phosphate buffer for 0.166667h; pH=6.0; Oxidation; cyclization; |
L-DOPA methyl ester
acetyl chloride
2-amino-3-(3,4-diacetoxyphenyl)-propionic acid
Conditions | Yield |
---|---|
With trifluoroacetic acid at 20℃; |
L-DOPA methyl ester
Conditions | Yield |
---|---|
With 3-methyl-2-benzothiazolinone hydrazone; (S)-(-)-1,1'-binapthyl-2,2-diamine copper(II) In methanol; phosphate buffer at 20℃; pH=8.6; Kinetics; Further Variations:; Catalysts; |
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