943-73-7

Basic information

• Product Name: L-Homophenylalanine
• Synonyms: RARECHEM BK PT 0049;(S)-2-AMINO-4-PHENYLBUTANOIC ACID;(S)-(+)-2-AMINO-4-PHENYLBUTYRIC ACID;(S)-2-AMINO-4-PHENYLBUTYRIC ACID;(S)-HOMOPHENYLALANINE;(2S)-2-Amino-4-phenylbutyric acid;(S)-APBA;(+)-2-Amino-4-phenylbutyric acid,98%
• CAS NO: 943-73-7
• Molecular Formula: C₁₀H₁₃NO₂
• Molecular Weight: 179.22
• EINECS: 213-403-3
• Product Categories: Chiral Compounds;Phenylalanine analogs and other aromatic alpha amino acids;API intermediates;Homophenylalanine [Hph];Amino Acids 13C, 2H, 15N;Chiral Compound;Amino Acids;Amino Acids & Derivatives;Aromatics
• Mol File: 943-73-7.mol
• Article Data: 52

Chemical Properties

• Melting Point: >300 °C(lit.)
• Boiling Point: 311.75°C (rough estimate)
• Flash Point: 150.2 °C
• Appearance: white solid
• Density: 1.1248 (rough estimate)
• Vapor Pressure: 9.79E-05mmHg at 25°C
• Refractive Index: 44 ° (C=1, 3mol/L HCl)
• Storage Temp.: Store at RT.
• Solubility: Soluble in dilute aqueous acid.
• PKA: 2.32±0.10(Predicted)
• CAS DataBase Reference: L-Homophenylalanine(CAS DataBase Reference)
• NIST Chemistry Reference: L-Homophenylalanine(943-73-7)
• EPA Substance Registry System: L-Homophenylalanine(943-73-7)

Safety Data

• Hazard Codes: Xi
• Safety Statements: 22-24/25
• WGK Germany: 3
• Hazardous Substances Data: 943-73-7(Hazardous Substances Data)

Usage

Description

L-Homophenylalanine is an amino acid derivative. It has been extensively used in the pharmaceutical industry as a precursor for production of angiotensin-converting enzyme (ACE) inhibitor: enalapril, delapril, quinapril and ramipril, which possesses significant clinical application in the management of hypertension and congestive heart failure (CHF). It acts as an anti-tumor reagent.

Chemical Properties

White Solid

References

Hwang, J. Y., et al. "Simultaneous synthesis of 2-phenylethanol and L-homophenylalanine using aromatic transaminase with yeast Ehrlich pathway." Biotechnology & Bioengineering 102.5(2009):1323-9. Ahmad, A. L., P. C. Oh, and S. R. Abd Shukor. "Sustainable biocatalytic synthesis of L-homophenylalanine as pharmaceutical drug precursor."Biotechnology Advances 27.3(2009):286-296. https://www.alfa.com/en/catalog/H27295/

Uses

Antitumor agent.

Definition

ChEBI: A non-proteinogenic L-alpha-amino acid that is an analogue of L-phenylalanine having a 2-phenylethyl rather than a benzyl side-chain.

InChI:InChI=1/C10H13NO2/c11-9(10(12)13)7-6-8-4-2-1-3-5-8/h1-5,9H,6-7,11H2,(H,12,13)

Synthetic route

S-2-amino-4-carbonyl-4-phenylbutyric acid hydrochloride → D-homophenylalanine (943-73-7)

Conditions	Yield
With hydrogen; palladium on activated charcoal In hydrogenchloride at 55℃; under 760 Torr;	100%
With hydrogenchloride; palladium 10% on activated carbon; hydrogen In water at 90℃; under 1500.15 Torr;	92%
With hydrogen; acetic acid; palladium on activated charcoal In water at 20℃; for 6h;

methyl (2S)-4-phenyl-2-(trichloromethylcarbonylamino)butanoate (1239710-15-6) → D-homophenylalanine (943-73-7)

Conditions	Yield
With hydrogenchloride; water for 20h; Inert atmosphere; Reflux;	100%

2-oxo-4-phenylbutyric acid (710-11-2) → D-homophenylalanine (943-73-7)

Conditions	Yield
With formate dehydrogenase; NAD; ammonium formate at 30℃; for 24h; PheDH;	99%
With formate dehydrogenase; ammonium formate; β-nicotinamide adenine dinucleotide reduced In aq. buffer at 30℃; for 24h; pH=8.5; Enzymatic reaction;	80%
With L-phenylalanine; phenylalanine dehydrogenase; pyridoxal 5'-phosphate; alcohol dehydrogenases from Bacillus stearothermophilus; aromatic aminotransferase; NADH In isopropyl alcohol at 35℃; for 2h; pH=8; Reagent/catalyst; Enzymatic reaction; enantioselective reaction;	60.3%
With glucose dehydrogenase; ammonium sulfate; D-glucose; NADP+-specific glutamate dehydrogenase from Pseudomonas putida, K402F mutant; nicotinamide adenine dinucleotide phosphate In aq. buffer at 35℃; pH=7.5; Reagent/catalyst; Green chemistry; Enzymatic reaction; enantioselective reaction;	n/a

(RS)-homophenylalaninamide hydrochloride (422511-01-1) → D-homophenylalanine (943-73-7)

Conditions	Yield
With pyridoxal 5'-phosphate monohydrate; cobalt(II) chloride In aq. buffer at 40℃; for 12h; pH=7.0; Enzymatic reaction;	99%

L-(+)-homophenylalanine hydrochloride → D-homophenylalanine (943-73-7)

Conditions	Yield
With sodium carbonate In methanol for 0.0833333h;	98%

(S)-2-Azido-4-phenyl-butyric acid (139040-47-4) → D-homophenylalanine (943-73-7)

Conditions	Yield
With hydrogen; palladium on activated charcoal In ethyl acetate under 760 Torr; for 13h;	92%
With hydrogen; palladium on activated charcoal In methanol

(3S,5S,6R)-4-(benzyloxycarbonyl)-5,6-diphenyl-3-(2'-oxo-2'-phenylethyl)-2,3,5,6-tetrahydro-4H-1,4-oxazin-2-one (100516-57-2) → D-homophenylalanine (943-73-7) + D-homophenylalanine (82795-51-5)

Conditions	Yield
With hydrogen; palladium dichloride In tetrahydrofuran; ethanol under 2068.6 Torr; for 34h; Yields of byproduct given;	A 91% B n/a

C10H12N2O4 → D-homophenylalanine (943-73-7)

Conditions	Yield
With 10 wt% Pd(OH)2 on carbon; hydrogen In ethanol; water at 65℃;	91%

homophenylalanine sodium salt (108960-95-8) → D-homophenylalanine (943-73-7)

Conditions	Yield
With hydrogenchloride; sodium hydroxide In water	89.6%

C18H21NO3 → D-homophenylalanine (943-73-7)

Conditions	Yield
With 20% palladium hydroxide-activated charcoal; hydrogen In methanol at 45℃; under 760.051 Torr; for 7h; Reagent/catalyst; Inert atmosphere; Green chemistry;	85%

2-(acetylamino)-4-phenylbutanoic acid (5440-40-4) → D-homophenylalanine (943-73-7) + (2R)-N-acetyl-2-amino-4-phenylbutyric acid (5440-40-4, 60505-02-4, 96613-91-1, 63393-59-9)

Conditions	Yield
With L-aminoacylase; cobalt(II) chloride In aq. buffer at 20 - 38℃; for 1h; pH=7.5; Inert atmosphere; Resolution of racemate; Enzymatic reaction; enantioselective reaction;	A 39% B 51%
With sodium hydroxide; potassium phosphate buffer; beef kidney acetone; CoCl2 at 37℃; for 24h; pH=7.5; Enzymatic reaction;	A 41% B 37.5%
With aminoacylase from Aspergillus oryzae; cobalt(II) chloride In water at 37℃; for 34h;	A 38% B 37%
With cobalt(II) chloride at 30℃; pH=8; aq. phosphate buffer; Resolution of racemate; Enzymatic reaction; optical yield given as %ee; enantioselective reaction;

(3aS,7S)-2,7-Diphenyl-tetrahydro-isoxazolo[3,2-c][1,4]oxazin-4-one → D-homophenylalanine (943-73-7)

Conditions	Yield
With hydrogen; palladium dihydroxide In 1,4-dioxane; trifluoroacetic acid under 3102.89 Torr;	50%

4-Phenylbutyric acid (1821-12-1) → D-homophenylalanine (943-73-7)

Conditions	Yield
Stage #1: 4-Phenylbutyric acid With P450CLA; dihydrogen peroxide In aq. phosphate buffer; ethanol at 20℃; for 20h; pH=7; Enzymatic reaction; Stage #2: With D-HIC-DH; L-HIC-DH; L-Phe-DH; NAD; ammonium carbonate; ammonium chloride In aq. phosphate buffer; ethanol at 20℃; for 24h; pH=8; Enzymatic reaction; enantioselective reaction;	48%
Stage #1: 4-Phenylbutyric acid With P450CLA; dihydrogen peroxide In aq. phosphate buffer; ethanol at 20℃; for 24h; pH=7; Enzymatic reaction; Stage #2: With D-isocaproate dehydrogenase from Lactobacillus confuses; L-isocaproate dehydrogenase from Lactobacillus confuses; L-phenylalanine dehydrogenase from Rhodococcus sp.; NAD; ammonium carbonate; ammonium chloride In aq. phosphate buffer; ethanol for 24h; pH=8; Enzymatic reaction; enantioselective reaction;	48%

(R)-2-Acetamido-4-phenylbutansaeure (96613-91-1) → D-homophenylalanine (943-73-7)

Conditions	Yield
With hydrogenchloride
With phosphoric acid

1-styrenyloxytrimethylsilane (13735-81-4) + (5S,6R)-3-Bromo-2-oxo-5,6-diphenyl-morpholine-4-carboxylic acid benzyl ester (100570-94-3) → D-homophenylalanine (943-73-7)

Conditions	Yield
With hydrogen; zinc(II) chloride; palladium dichloride 1.) THF, 25 deg C, 2.) EtOH, 25 deg C, p= 20 psi; Yield given. Multistep reaction;

2-(acetylamino)-4-phenylbutanoic acid (5440-40-4) → D-homophenylalanine (943-73-7)

Conditions	Yield
With CoCl2 In water at 37℃; for 72h; aminoacylase (from Aspergillus oryzae); pH 7;
With aminoacylase I from Aspergillus melleus; Tris buffer In water at 25℃; pH=7.5;

benzyl chloride (100-44-7) + [(S)-2-N-(N-benzylprolyl)aminobenzophenone-Δ-Ala]Ni(II) → D-homophenylalanine (943-73-7) + D-homophenylalanine (82795-51-5)

Conditions	Yield
With hydrogenchloride; 2,2'-azobis(isobutyronitrile); water; tri-n-butyl-tin hydride Product distribution; various alkyl halides, stereoselective addition;

-2-<(benzyloxycarbonyl)amino>-4-phenyl-3-butenoic acid (212832-72-9) → D-homophenylalanine (943-73-7)

Conditions	Yield
With hydrogen; palladium on activated charcoal In methanol for 4h; Ambient temperature;

[(E)-(S)-1-((S)-1,2-Dihydroxy-ethyl)-3-phenyl-allyl]-carbamic acid tert-butyl ester (201852-41-7) → D-homophenylalanine (943-73-7)

Conditions	Yield
With ruthenium trichloride; sodium periodate In tetrachloromethane; water; acetonitrile

benzyl 2-amino-4-phenylbutanoate → D-homophenylalanine (943-73-7) + D-homophenylalanine (82795-51-5)

Conditions	Yield
With Alcalase; water In tert-butyl alcohol at 25℃; for 0.3h; pH=8.5; kinetic resolution; Title compound not separated from byproducts;

(+-)-2-amino-4-phenyl-butyric acid amide → D-homophenylalanine (943-73-7)

Conditions	Yield
With aminopeptidase-substance from pig's-kidneys; water; manganese(ll) chloride at 38℃; pH 7.5;

(S)-2-acetamido-4-phenylbutyric acid ethyl ester (253327-94-5) → D-homophenylalanine (943-73-7)

Conditions	Yield
With hydrogenchloride for 2h; Hydrolysis; Heating;

(S)-3-((S)-2-Hydroxy-1-phenyl-ethylamino)-5-phenyl-dihydro-furan-2-one → D-homophenylalanine (943-73-7)

Conditions	Yield
With hydrogen; palladium dihydroxide In 1,4-dioxane; trifluoroacetic acid under 3102.89 Torr;

DL-2-amino-4-phenylbutyramide (99169-43-4, 124019-00-7, 85808-34-0) → D-homophenylalanine (943-73-7) + D-homophenylalanine (82795-51-5)

Conditions	Yield
With aminoacylase I from Aspergillus melleus; Tris buffer In water at 25℃; for 2.5h; pH=7.5; Title compound not separated from byproducts;
Multi-step reaction with 2 steps 1: hydrogenchloride / water / 3 h / 20 °C 2: pyridoxal 5'-phosphate monohydrate / aq. buffer / 12 h / 40 °C / pH 8.0 / Enzymatic reaction View Scheme

(3E,2S)-2-amino-4-phenyl-3-butenoic acid hydrochloride → D-homophenylalanine (943-73-7)

Conditions	Yield
With hydrogen; acetic acid; palladium on activated charcoal In water at 20℃; for 6h;

(4R,5S)-1,5-Dimethyl-4-phenyl-3-(4-phenyl-butyryl)-imidazolidin-2-one → D-homophenylalanine (943-73-7)

Conditions	Yield
Multi-step reaction with 4 steps 1.1: LHMDS / tetrahydrofuran; hexane / -78 °C 1.2: Br2 / tetrahydrofuran; hexane / -78 °C 2.1: 92 percent / tetramethylguanidinium azide / CH2Cl2 / 0 - 20 °C 3.1: 95 percent / LiOH; aq. H2O2 / tetrahydrofuran / 20 °C 4.1: H2 / Pd/C / methanol View Scheme

(2'R,4S,5R)-1-(2'-bromo-4'-phenylbutyryl)-3,4-dimethyl-5-phenylimidazolidin-2-one (852298-76-1) → D-homophenylalanine (943-73-7)

Conditions	Yield
Multi-step reaction with 3 steps 1: 92 percent / tetramethylguanidinium azide / CH2Cl2 / 0 - 20 °C 2: 95 percent / LiOH; aq. H2O2 / tetrahydrofuran / 20 °C 3: H2 / Pd/C / methanol View Scheme

(4S,5R)-1-((S)-2-Azido-4-phenyl-butyryl)-3,4-dimethyl-5-phenyl-imidazolidin-2-one (852298-83-0) → D-homophenylalanine (943-73-7)

Conditions	Yield
Multi-step reaction with 2 steps 1: 95 percent / LiOH; aq. H2O2 / tetrahydrofuran / 20 °C 2: H2 / Pd/C / methanol View Scheme

D,L-homophenylalanine (1012-05-1) → D-homophenylalanine (943-73-7)

Conditions	Yield
Multi-step reaction with 2 steps 1: alkaline aq. solution / 0.5 h / 4 °C / pH 11 2: aminoacylase I from Aspergillus melleus; Tris buffer / H2O / 25 °C / pH 7.5 View Scheme
Multi-step reaction with 2 steps 1: 89.5 percent / NaOH / H2O / 1 h / 0 - 5 °C / pH 11 - 11.5 2: 41 percent / potassium phosphate buffer; aq. NaOH; beef kidney acetone powder / CoCl2 / 24 h / 37 °C / pH 7.5 / Enzymatic reaction View Scheme
Multi-step reaction with 2 steps 2: CoCl2 / H2O / 72 h / 37 °C / aminoacylase (from Aspergillus oryzae); pH 7 View Scheme
Multi-step reaction with 2 steps 1.1: sodium hydroxide / water / Cooling with ice 1.2: pH 2 2.1: penicillin G acylase from Achromobacter sp. CCM 4824; water / 30 °C / pH 7 / Enzymatic reaction View Scheme

ethanol (64-17-5) + D-homophenylalanine (943-73-7) → L-(+)-α-amino-4-phenylbutyric acid ethyl ester hydrochloride (90891-21-7)

Conditions	Yield
With hydrogenchloride for 2h; Heating;	100%
With thionyl chloride at 60℃; for 5h;	92%
With thionyl chloride

D-homophenylalanine (943-73-7) + methyl chloroformate (79-22-1) → (S)-2-<(Methoxycarbonyl)amino>-4-phenylbutanoic Acid (136220-97-8, 148554-82-9, 96854-30-7)

Conditions	Yield
With sodium carbonate In water a) 0 deg C, 10 min, b) r.t., 2 h;	100%
In tetrahydrofuran; water; sodium carbonate	97%
With sodium carbonate In tetrahydrofuran at 20℃; for 4h;	97%

methanol (67-56-1) + D-homophenylalanine (943-73-7) → (+)-α-amino-4-phenylbutyric acid methyl ester hydrochloride (60425-49-2)

Conditions	Yield
With hydrogenchloride for 5h; Heating / reflux;	100%
With thionyl chloride at 0 - 65℃; for 2h;	95%
With thionyl chloride at 0 - 65℃; for 2h;	95%
With thionyl chloride at 0 - 20℃;

D-homophenylalanine (943-73-7) → (2S)-2-amino-4-phenyl-1-butanol (27038-09-1)

Conditions	Yield
With lithium borohydride; Methyltrichlorosilane In tetrahydrofuran at 0℃; for 18.5h;	97%
With lithium borohydride; chloro-trimethyl-silane In tetrahydrofuran at 20℃; for 24h; Inert atmosphere;	75%
Stage #1: D-homophenylalanine With lithium aluminium tetrahydride In tetrahydrofuran at 0℃; for 18h; Reflux; Stage #2: With water; sodium hydroxide In tetrahydrofuran

D-homophenylalanine (943-73-7) → (S)-2-amino-4-cyclohexylbutanoic acid

Conditions	Yield
With hydrogenchloride; 5% rhodium-on-charcoal; platinum on carbon In methanol; water at 20℃; under 3102.97 Torr;	97%
With hydrogenchloride; sodium hydroxide In water
With hydrogenchloride; 5% platinum on carbon; 5% Rh/C; hydrogen In methanol; water under 3102.97 Torr;

D-homophenylalanine (943-73-7) + cholin hydroxide (123-41-1) → choline-homophenylalanine

Conditions	Yield
In water at 3℃; Darkness;	96%

D-homophenylalanine (943-73-7) → (S)-2-bromo-4-phenylbutanoic acid (174692-89-8)

Conditions	Yield
With hydrogen bromide; sodium nitrite In water at -10℃; for 3h;	94%

2,5-dioxopyrrolidin-1-yl (2S)-2-(((benzyloxy)carbonyl)amino)-3-methylbutanoate (3496-11-5) + D-homophenylalanine (943-73-7) → N-benzyloxycarbonyl-L-valyl-L-homophenylalanine

Conditions	Yield
With triethylamine In tetrahydrofuran; water at 20℃; Condensation;	89%

D-homophenylalanine (943-73-7) → bis[2,2'-disulfan-diyl-4,4'-diphenyl]-dibutanoic acid

Conditions	Yield
Stage #1: D-homophenylalanine With hydrogen bromide; sodium nitrite In water for 0.666667h; Stage #2: With sodium hydride; potassium thioacetate In N,N-dimethyl-formamide at 20℃; for 4h; Stage #3: With sodium hydroxide In methanol at 20℃; for 3h;	89%

ethanol (64-17-5) + D-homophenylalanine (943-73-7) → ethyl 2-amino-4-phenyl-(2S)-butyrate (46460-23-5)

Conditions	Yield
With hydrogenchloride; sodium carbonate	84.9%

D-homophenylalanine (943-73-7) + ethyl acetate (141-78-6) → 2-oxo-4-phenylbutanoic acid ethyl ester (64920-29-2)

Conditions	Yield
With hydrogenchloride; sodium hypochlorite; tetrabutylammomium bromide In water at 0 - 40℃; Product distribution / selectivity;	84.1%

D-homophenylalanine (943-73-7) → (S)-2-amino-4-cyclohexylbutyric acid hydrochloride (107202-31-3)

Conditions	Yield
With hydrogen; platinum In hydrogenchloride under 2585.7 Torr; for 16h;	84%

D-homophenylalanine (943-73-7) + benzyl alcohol (100-51-6) → benzyl (2S)-2-amino-4-phenylbutyrate (83080-02-8)

Conditions	Yield
With toluene-4-sulfonic acid In toluene for 16h; Dean-Stark; Reflux;	80%

D-homophenylalanine (943-73-7) + toluene-4-sulfonic acid (104-15-4) + benzyl alcohol (100-51-6) → p-tolylsulfonic caid salt of L-homophenylalanine benzyl ester (117560-24-4)

Conditions	Yield
In toluene for 4h; Heating;	79%
In benzene for 6h; Heating;

D-homophenylalanine (943-73-7) + (S,S)-2,4-dibenzylglutaric anhydride (105226-92-4) → N-<(S,S)-2,4-dibenzyl-4-carboxybutyryl>-(S)-homophenylalanine (112893-84-2)

Conditions	Yield
With pyridine In dichloromethane for 16h; Ambient temperature;	74%

D-homophenylalanine (943-73-7) + 3-bromo-2,3,4,5-tetrahydro-1H-[1]-benzoazepine-2-one-1-acetic acid tert-butyl ester → C26H32N2O5

Conditions	Yield
With triethylamine In isopropyl alcohol at 60℃; for 24h; Catalytic behavior; Concentration; Solvent; Temperature;	73%

phthalic anhydride (85-44-9) + D-homophenylalanine (943-73-7) → (S)-2-(1,3-dioxoisoindolin-2-yl)-4-phenylbutanoic acid (291303-23-6)

Conditions	Yield
With triethylamine In toluene at 130℃; Dean-Stark;	72%

D-homophenylalanine (943-73-7) → L-4-nitro-homophenylalanine (705919-70-6)

Conditions	Yield
With sulfuric acid; nitric acid at 0 - 5℃; for 0.5h;	59%

D-homophenylalanine (943-73-7) + benzoyl chloride (98-88-4) → (S)-2-benzoylamino-4-phenylbutyric acid (150446-13-2)

Conditions	Yield
With sodium hydroxide In water at 0 - 23℃;	59%
With sodium hydroxide cooling;

Upstream product

• 943736-69-4  
• 943736-64-9 1,1-DI-ISOTHIAZOL-5-YL-ETHYL ACETATE 
• 943736-63-8 4-(4-CHLORO-PHENYL)-1-PIPERIDIN-4-YL-PYRROLIDIN-2-ONE 
• 943736-61-6 1-BOC-1,2,3,4-TETRAHYDROQUINOLINE-7-CARBALDEHYDE 
• 943736-60-5 5H-Pyrrolo[3,2-d]pyrimidin-2-amine 
• 943736-58-1 2-AMINO-4-CHLORO-5H-PYRROLO[3,2-D]PYRIMIDINE 
• 943735-44-2 2,5-DIBROMO-THIAZOLE-4-CARBOXYLIC ACID 
• 94373-44-1 2-[4-(3,4-dihydro-2H-pyrrol-5-yl)phenoxy]-N,N-diethylethanamine 
• 94372-90-4 1,2,2-TRIMETHYL-3-(4-METHYL-PIPERAZINE-1-CARBONYL)-CYCLOPENTANECARBOXYLIC ACID 
• 94372-75-5 2-{benzyl[2-(diethylamino)ethyl]amino}ethanol 
• 94372-70-0 1,6-dichloro-1,6-dimethyl-4-(propan-2-yl)decahydronaphthalene 
• 943726-01-0 Propargyl-PEG3-Ms 
• 943725-79-9  
• 943722-24-5 3-(N-Boc-aminomethyl)-5-bromopyridine 

Downstream Products

• 94373-72-5 ethyl (2-morpholin-4-ylpropyl)phenylcarbamate 
• 94373-88-3 2,6-bis(morpholin-4-ylmethyl)benzene-1,4-diol 
• 943742-24-3 4-Bromo-2-chloro-1-ethenyl-benzene 
• 94374-22-8 tert-Butyl N~5~-[(4-methylphenyl)sulfonyl]-L-ornithinate 
• 94374-28-4 PM 365 
• 943742-86-7 4-BroMo-α-ethyl-benzeneacetic acid ethyl ester 
• 943743-25-7 3-amino-4-fluorobenzamide 
• 943743-88-2 1H-Benzimidazol-2-amine, 2,3-dihydro-5,6-dimethyl- 
• 943749-57-3 6-bromo-1,4-dihydro-2H-isoquinolin-3-one 
• 943749-58-4 8-bromo-1,2-dihydroisoquinolin-3(4H)-one 
• 943749-63-1 4-BROMO-2-(CARBOXYMETHYL)BENZOIC ACID 
• 943749-86-8 2-AMinoMethyl-5-MethoxypyriMidin-4-ol 
• 943750-26-3 4-(4-CHLORO-3,5-DIMETHYL-1H-PYRAZOL-1-YL)ANILINE 
• 943750-38-7 2-(4-BROMO-PHENYL)-PYRROLIDINE-1-CARBOXYLIC ACID TERT-BUTYL ESTER 

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