CAS No.16709-25-4,ALPHA-METHYL-L-TRYPTOPHAN Suppliers

GL Biochem (Shanghai) Ltd.

GL Biochem (Shanghai) Ltd. founded in 1998, has become an internationally recognized biochemical manufacturing company that specializes in producing/synthesizing and providing peptide reagents, custom peptides and antibodies. GL Biochem is

Alpha-Methyl-L-Tryptophan, H-α-Me-L-Trp-OH, MFCD00038416

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Hebei Nengqian Chemical Import and Export Co., LTD

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ALPHA-METHYL-L-TRYPTOPHAN CAS 16709-25-4

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Dayang Chem (Hangzhou) Co.,Ltd.

As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem’s R&D center offer custom synthesis according to the contract research and development services for the fine chemicals, ph

alpha-Methyl-L-tryptophan

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Henan Wentao Chemical Product Co., Ltd.

Henan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod

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Hangzhou J&H Chemical Co., Ltd.

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Shandong Mopai Biotechnology Co., LTD

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Kono Chem Co.,Ltd

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Xi`an Eastling Biotech Co., Ltd.

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ALPHA-METHYL-L-TRYPTOPHAN

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Antimex Chemical Limied

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Henan Kanbei Chemical Co.,LTD

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ALPHA-METHYL-L-TRYPTOPHAN

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Chemlyte Solutions

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Shanghai Terui OP New Material Technology Co., Ltd.

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Shanghai Chinqesen Biotechnology Co., Ltd.

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Research Peptide Biotechnology Co., Ltd.

High purity, high success rate, short cycle and moderate priceAppearance:White powder solid Storage:Negative 20 degrees Celsius Package:5mg, 10mg 100mg, 1gram Application:Applied to various scientific research

ALPHA-METHYL-L-TRYPTOPHAN

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ZHEJIANG JIUZHOU CHEM CO.,LTD

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Amadis Chemical Co., Ltd.

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α-Methyl-L-tryptophan

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Finetech Industry Limited

FINETECH INDUSTRY LIMITED is a LONDON based CRO company providing drug discovery & development services to worldwide clients. FINETECH INDUSTRY LIMITED supplies the a-Methyl-L-tryptophan, CAS:16709-25-4 with the most competitive price and the best qu

A-METHYL-L-TRYPTOPHAN

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Aagile Labs Division of Tyger Scientific

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L-Tryptophan,α-methyl-

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Synthetic route

: 114524-80-0
methyl 2-(indol-3-ylmethyl)-2-aminopropionate

A: 56452-52-9
α-methyl-DL-tryptophan

B: 16709-25-4
(S)-α-methyltryptophan

C: 96551-27-8
α-methyl-(R)-tryptophan methyl ester

Conditions

Conditions	Yield
With α-chymotrypsin In water at 37℃; for 40h; pH=5.0;	A 4% B n/a C 88%
With α-chymotrypsin In water at 37℃; for 40h; pH=5.0;	A 4% B n/a C n/a

...Expand

: 114524-80-0
methyl 2-(indol-3-ylmethyl)-2-aminopropionate

A: 16709-25-4
(S)-α-methyltryptophan

B: 96551-27-8
α-methyl-(R)-tryptophan methyl ester

Conditions

Conditions	Yield
With α-chymotrypsin In water at 37℃; for 40h; Product distribution; also other α-methyl-amino acid esters investigated;	A n/a B 88%

: 116139-87-8
(S)-N2-benzoyl-2-methyltryptophan-methylester

: 16709-25-4
(S)-α-methyltryptophan

Conditions

Conditions	Yield
With hydrogenchloride In methanol Heating;	87%

: 1266681-04-2
tert-butyl 3-{[(3S,5aR,6aS,7aS)-2,3,5,5a,6,6a,7,7a-octahydro-3,6,6,7a-tetramethyl-2-oxobicyclo[4.1.0]hept-1(6)eno[3,4-b][1,4]oxazin-3-yl]methyl}-1H-indole-1-carboxylate

: 16709-25-4
(S)-α-methyltryptophan

Conditions

Conditions	Yield
Stage #1: tert-butyl 3-{[(3S,5aR,6aS,7aS)-2,3,5,5a,6,6a,7,7a-octahydro-3,6,6,7a-tetramethyl-2-oxobicyclo[4.1.0]hept-1(6)eno[3,4-b][1,4]oxazin-3-yl]methyl}-1H-indole-1-carboxylate With cesium hydroxide; water In ethanol at 70℃; for 4h; Stage #2: With hydrogenchloride In water	86%

: tert-butyl [3-(3S,6R)-N-1-(tert-butoxycarbonyl)-6-isopropyl-3-methyl-2-oxo-5-phenyl-1,2,3,6-tetrahydropyrazinylmethyl]-1H-1-indolecarboxylate

: 16709-25-4
(S)-α-methyltryptophan

Conditions

Conditions	Yield
With hydrogenchloride at 150℃; for 72h; Hydrolysis;	40%

: 141784-94-3
2-Amino-3-(1H-indol-3-yl)-2-methyl-propionic acid butyl ester

A: 16709-25-4
(S)-α-methyltryptophan

B: 141784-97-6
(R)-2-Amino-3-(1H-indol-3-yl)-2-methyl-propionic acid butyl ester

C: 141784-94-3, 141784-97-6
(S)-2-Amino-3-(1H-indol-3-yl)-2-methyl-propionic acid butyl ester

Conditions

Conditions	Yield
In various solvent(s) Ambient temperature; Candida lipolythica lipase (active component: Candida lypolythica esterase); Yield given. Yields of byproduct given;
In various solvent(s) Ambient temperature; Candida lipolythica lipase (active component: Candida lypolythica esterase); Yield given. Yields of byproduct given. Title compound not separated from byproducts;

...Expand

: 121704-33-4
2-(2-Chloro-acetylamino)-3-(1H-indol-3-yl)-2-methyl-propionic acid

A: 16709-25-4
(S)-α-methyltryptophan

B: 121704-33-4
(R)-2-(2-Chloro-acetylamino)-3-(1H-indol-3-yl)-2-methyl-propionic acid

Conditions

Conditions	Yield
With potassium hydroxide; potassium phosphate buffer; porcine kidney acylase I at 40℃; relative initial rate of hydrolysis, also with Aspergillus acylase I as a catalyst; with or without CoCl2;

: (R)-Nα-(Methoxycarbonyl)-α-methyltryptophan methyl ester

A: 56452-52-9
α-methyl-DL-tryptophan

B: 16709-25-4
(S)-α-methyltryptophan

Conditions

Conditions	Yield
With hydrogenchloride for 16h; Heating; Yield given. Yields of byproduct given. Title compound not separated from byproducts;

: 3-((S)-2-Benzyloxycarbonyl-2-benzyloxycarbonylamino-propyl)-indole-1-carboxylic acid benzyl ester

: 16709-25-4
(S)-α-methyltryptophan

Conditions

Conditions	Yield
With hydrogen; palladium on activated charcoal In ethanol for 3h; Ambient temperature; Yield given;

: 153-91-3
DL-α-methyltryptophan

A: 56452-52-9
α-methyl-DL-tryptophan

B: 16709-25-4
(S)-α-methyltryptophan

Conditions

Conditions	Yield
resolution of racemate via chiral HPLC;
With Merck RP-18 WF254S plates coated with Nτ-n-decyl-L-spinacine and Cu acetate In water; acetonitrile Resolution of racemate;

: 69876-37-5
(S)-benzyl 2-(((benzyloxy)carbonyl)amino)-3-(1H-indol-3-yl)propanoate

: 16709-25-4
(S)-α-methyltryptophan

Conditions

Conditions	Yield
Multi-step reaction with 5 steps 1: CF3COOH / 96 h / Ambient temperature 2: Na2CO3 / dioxane; H2O / 0 °C 3: 1.) lithium bis(trimethylsilyl)amide / 1.) THF, -78 deg C, 1 h, 2.) THF, a) -78 deg C, 1 h, b) from -78 deg C to RT, 2 h 4: trifluoroacetic acid / 1.5 h / Ambient temperature 5: H2 / 10percent Pd/C / ethanol / 3 h / Ambient temperature View Scheme

: dibenzyl (2S,3aR,8aR)-3,3a,8,8a-tetrahydropyrrolo[2,3-b]indol-1,2 (2H)-dicarboxylate

: 16709-25-4
(S)-α-methyltryptophan

Conditions

Conditions	Yield
Multi-step reaction with 4 steps 1: Na2CO3 / dioxane; H2O / 0 °C 2: 1.) lithium bis(trimethylsilyl)amide / 1.) THF, -78 deg C, 1 h, 2.) THF, a) -78 deg C, 1 h, b) from -78 deg C to RT, 2 h 3: trifluoroacetic acid / 1.5 h / Ambient temperature 4: H2 / 10percent Pd/C / ethanol / 3 h / Ambient temperature View Scheme

: 200716-93-4
(2S,3aR,8aS)-2,3,3a,8a-Tetrahydro-pyrrolo[2,3-b]indole-1,2,8-tricarboxylic acid tribenzyl ester

: 16709-25-4
(S)-α-methyltryptophan

Conditions

Conditions	Yield
Multi-step reaction with 3 steps 1: 1.) lithium bis(trimethylsilyl)amide / 1.) THF, -78 deg C, 1 h, 2.) THF, a) -78 deg C, 1 h, b) from -78 deg C to RT, 2 h 2: trifluoroacetic acid / 1.5 h / Ambient temperature 3: H2 / 10percent Pd/C / ethanol / 3 h / Ambient temperature View Scheme

: 200716-94-5
(2S,3aR,8aR)-2-Methyl-2,3,3a,8a-tetrahydro-pyrrolo[2,3-b]indole-1,2,8-tricarboxylic acid tribenzyl ester

: 16709-25-4
(S)-α-methyltryptophan

Conditions

Conditions	Yield
Multi-step reaction with 2 steps 1: trifluoroacetic acid / 1.5 h / Ambient temperature 2: H2 / 10percent Pd/C / ethanol / 3 h / Ambient temperature View Scheme

: 7432-21-5
N-carbobenzyloxy-L-tryptophane

: 16709-25-4
(S)-α-methyltryptophan

Conditions

Conditions	Yield
Multi-step reaction with 6 steps 1: Cs2CO3 / dimethylformamide 2: CF3COOH / 96 h / Ambient temperature 3: Na2CO3 / dioxane; H2O / 0 °C 4: 1.) lithium bis(trimethylsilyl)amide / 1.) THF, -78 deg C, 1 h, 2.) THF, a) -78 deg C, 1 h, b) from -78 deg C to RT, 2 h 5: trifluoroacetic acid / 1.5 h / Ambient temperature 6: H2 / 10percent Pd/C / ethanol / 3 h / Ambient temperature View Scheme

: 170458-97-6
(2R,4R)-2-(tert-Butyl)-3-(ethoxycarbonyl)-4-(indol-3-yl-methyl)-4-methyl-1,3-oxazolidin-5-one

: 16709-25-4
(S)-α-methyltryptophan

Conditions

Conditions	Yield
Multi-step reaction with 2 steps 1: 95.7 percent / LiOH*H2O / 6 h / 40 °C 2: aq. 6 N HCl / 16 h / Heating View Scheme

: (4R)-2-(tert-Butyl)-3-(ethoxycarbonyl)-4-(indol-3-yl-methyl)-1,3-oxa4olidin-5-one

: 16709-25-4
(S)-α-methyltryptophan

Conditions

Conditions	Yield
Multi-step reaction with 3 steps 1: 78.9 percent / LDA / tetrahydrofuran / 1.) -78 deg C, 0.5 h, 2.) -78 deg C, 2 h 2: 95.7 percent / LiOH*H2O / 6 h / 40 °C 3: aq. 6 N HCl / 16 h / Heating View Scheme

: 96551-21-2
1-(t-butyloxycarbonyl)-3-(bromomethyl)indole

: 16709-25-4
(S)-α-methyltryptophan

Conditions

Conditions	Yield
Multi-step reaction with 3 steps 1: 1.) HMPT, LDA / 1.) THF, -78 deg C, 40 min, 2.) THF, -78 deg C, 36 h 2: 59 percent / 1N MeONa / methanol / 24 h / Ambient temperature 3: 87 percent / 6N HCl / methanol / Heating View Scheme

: 116139-85-6
(2R,5S)-3-benzoyl-2-(tert-butyl)-4-(<1-(tert-butyloxycarbonyl)-1H-indol-3-yl>methyl)-4-methyl-5-oxazolidinon

: 16709-25-4
(S)-α-methyltryptophan

Conditions

Conditions	Yield
Multi-step reaction with 2 steps 1: 59 percent / 1N MeONa / methanol / 24 h / Ambient temperature 2: 87 percent / 6N HCl / methanol / Heating View Scheme

: 67-56-1
methanol

: 16709-25-4
(S)-α-methyltryptophan

: 142854-50-0
L-α-methyl-tryptophan methyl ester

Conditions

Conditions	Yield
With thionyl chloride Yield given. Multistep reaction;

: 2-adamantyloxychloroformate

: 16709-25-4
(S)-α-methyltryptophan

: 130406-42-7
2-[(Adamantan-2-yl-oxy)-carbonyl]-amino-3-(1H-indol-3-yl)-2RS-methyl-propionic acid

Conditions

Conditions	Yield
With sodium hydroxide In 1,4-dioxane

: 1-aminomethyl-1-(5-hydroxypyridin-2-yl)cyclohexane hydrobromide

: 16709-25-4
(S)-α-methyltryptophan

: (S)-2-amino-3-(1H-indol-3-yl)-N-[1-(5-hydroxypyridin-2-yl)cyclohexylmethyl]-2-methylpropionamide

Conditions

Conditions	Yield
With 4-methyl-morpholine; benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate In tetrahydrofuran at 20℃;

: 1-aminomethyl-1-(4-(2-fluoroethoxy)phenyl)cycloexane hydrochloride

: 16709-25-4
(S)-α-methyltryptophan

: (S)-2-amino-3-(1H-indol-3-yl)-N-[1-(4-(2-fluoroethoxy)phenyl)cyclohexylmethyl]-2-methylpropionamide

Conditions

Conditions	Yield
With 4-methyl-morpholine; benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate In tetrahydrofuran at 20℃;

: 1-aminomethyl-1-(2-fluoropyridin-4-yl)cycloexane

: 16709-25-4
(S)-α-methyltryptophan

: (S)-2-amino-3-(1H-indol-3-yl)-N-[1-(2-fluoropyridin-5-yl)-cyclohexylmethyl]-2-methylpropionamide

Conditions

Conditions	Yield
With 4-methyl-morpholine; benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate In tetrahydrofuran at 20℃;

: 1-aminomethyl-1-(2-fluoropyridin-5-yl)cycloexane

: 16709-25-4
(S)-α-methyltryptophan

: (S)-2-amino-3-(1H-indol-3-yl)-N-[1-(2-fluoropyridin-5-yl)-cyclohexylmethyl]-2-methylpropionamide

Conditions

Conditions	Yield
With 4-methyl-morpholine; benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate In tetrahydrofuran at 20℃;

: 1-aminomethyl-1-(2-fluoropyridin-5-yl)cycloexane

: 16709-25-4
(S)-α-methyltryptophan

: (S)-3-(1H-indol-3-yl)-N-[1-(2-fluoropyrid-5-yl)cyclohexylmethyl]-2-methyl-2-[3-(4-nitrophenyl)ureido]propionamide

Conditions

Conditions	Yield
Multi-step reaction with 2 steps 1: 4-methyl-morpholine; benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate / tetrahydrofuran / 20 °C 2: tetrahydrofuran / 24 h / 20 °C View Scheme

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GL Biochem (Shanghai) Ltd.

Hebei Nengqian Chemical Import and Export Co., LTD

Dayang Chem (Hangzhou) Co.,Ltd.

Henan Wentao Chemical Product Co., Ltd.

Hangzhou J&H Chemical Co., Ltd.

Shandong Mopai Biotechnology Co., LTD

Kono Chem Co.,Ltd

Xi`an Eastling Biotech Co., Ltd.

Antimex Chemical Limied

Henan Kanbei Chemical Co.,LTD

Chemlyte Solutions

Shanghai Terui OP New Material Technology Co., Ltd.

Shanghai Chinqesen Biotechnology Co., Ltd.

Research Peptide Biotechnology Co., Ltd.

ZHEJIANG JIUZHOU CHEM CO.,LTD

Amadis Chemical Co., Ltd.

Finetech Industry Limited

Aagile Labs Division of Tyger Scientific

Synthetic route

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