AminoLogics Co Ltd

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ARCA forms an imine with amino acids at basic condition. Hydrogen bonding between N of imine and OH, along with hydrogen bonding between the uryl proton and the carboxylic anion take place. Depending on the optical properties of a-amino acids, the steric hindrance between R position of a-proton and H of imine may occur which affects the stability.

S-ARCA, as seen in the picture below, exhibits a higher stability with D-amino acids due to less steric hindrance. The NMR pattern shows that the stronger hydrogen bond between the uryl group and the carboxyl group may contribute to greater receptor streoselectivity for binding D-amino acids.

Amino Acids & Derivatives

- D-Alanine / 338-69-2 / (R)-2-Aminopropionic acid
- D-2-Nal / 76985-09-6 / 3-(2-Naphthyl)-D-alanine
- D-4Cl-Phe / 14091-08-8 / 4-Chloro-D-phenylalnaine
- D-4-Cl-Phe.OMe.HCl / 33965-47-8 / 4-Chloro-D-phenylalanine methyl ester hydrochloride
- D-Arg.HCl / 627-75-8 / (R)-2-Amino-5-guanidinopentanoic acid hydrochloride
- D-Citrulline / 13594-51-9
- D-Cys.HCl.anhydrous / 32443-99-5 / D-Cys HCl
- D-Cys.HCl.H2O / 32443-99-5 / D-Cysteine Hydrochloride Monohydrate
- D-Phenylalanine / 673-06-3
- D-Serine / 312-84-5 / (R)-2-Amino-3-hydroxypropionic acid
- D-Val-NH2.HCl / 133170-58-8 / (2R)-2-amino-3-methylbutanamide,hydrochloride
- L-Serine / 56-45-1 / (S)-2-Amino-3-hydroxypropionic acid
- L-Thi / 22951-96-8 / 3-(2-Thienyl)-L-alanine, ß-(2-thienyl)-Ala-OH
- Octadecanedioic acid mono tert-butyl ester / 843666-40-0 / OCDA MB, 18-(tert-butoxy)-18-oxooctadecanoic acid
- 2-Chloro-Z-Osu / 65853-65-8
- Ac-D-2-Nal / 37440-01-0 / (R)-N-Acetyl-2-naphthylalanine
- D-CHA / 58717-02-5 / H-ß-Cyclohexyl-D-ala-OH
- H-7-Me-Trp-OH / 33468-36-9
- H-Cys(SO3Na) / 7381-67-1
- H-Cys(Trt)-NH2 / 166737-85-5
- H-D-Arg(Mts)-OH / 76939-34-9
- H-D-His(1-Trt)-OH / 199119-46-5
- H-D-Lys(2-chloro-Z)-OH / 201014-19-9
- H-D-Ser(tBu)-Obzl x HCl / 203732-77-8
- H-Gln(Trt)-Oallyl / TBD / Allyl N-5-trityl-L-glutaminate
- Hmp(Trt) / 228107-54-8 / 2-Hydroxy-3-thiol(Trt)-propionic acid
- H-p-Bz-D-Phe-OH / 201466-03-7
- H-ThpGly-OMe.HCl / 199330-66-0 / Methyl 4-aminotetrahydro-2H-pyran-4-carboxylate hydrochloride
- N-Fmoc-S-2-amino-heptanoic acid / 1197020-22-6

Fmoc protected Amino Acids

- Fmoc-D-Trp(Boc)-OH / 163619-04-3 / N-a-Fmoc-N-in-Boc-D-tryptophan
- Fmoc-D-Trp(Boc)-OH / 163619-04-3 / N-a-Fmoc-N-in-Boc-D-tryptophan
- Fmoc-L-Trp(Boc)-OH / 143824-78-6 / N-a-Fmoc-N-in-Boc-L-tryptophan
- Fmoc-L-Trp-OH 7 35737-15-6
- Fmoc-D-2-Nal / 138774-94-4 / Fmoc-3-(2-naphthyl)-D-alanine
- Fmoc-L-2-Nal / 112883-43-9 / Fmoc-3-(2-naphthyl)-L-alanine
- Fmoc-D-3-Pal / 142994-45-4 / Fmoc-ß-(3-pyridyl)-D-Ala-OH
- Fmoc-L-3-Pal / 169555-95-7 / Fmoc-3-(4-Pyridyl)-Ala-OH, Fmoc-ß-(3-pyridyl)-L-Ala-OH
- Fmoc-D-Dab(Boc)-OH / 114360-56-4 / N-alpha-Fmoc-N-gamma-Boc-L-2,4-D-diaminobutyric acid
- Fmoc-L-Dab(Boc)-OH / 125238-99-5 / N-alpha-Fmoc-N-gamma-Boc-L-2,4-diaminobutyric acid
- Fmoc-D-Cha-OH / 144701-25-7 / Fmoc-D-cyclohexylalanine
- Fmoc-L-Cha-OH / 135673-97-1 / N-alpha-Fmoc-beta-cyclohexyl-L-alanine
- Fmoc-4-Cl-D-Phe-OH / 142994-19-2 / Fmoc-D-pClPhe-OH
- Fmoc-5-hydroxy-Nva(TBDPS)-OH / 1404090-60-3 / (2S)-5-{[tert-butyl(diphenyl)silyl]oxy}-2-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}pentanoic acid
- Fmoc-7-AzaTrp-OH / 7377007-45-3 / (S)-2-(Fmoc-amino)-3-(1H-pyrrolo[2,3-b]pyridin-3-yl)propanoic acid
- Fmoc-7-Me-Trp(Boc)-OH / N/A
- Fmoc-AEEA / 166108-71-0 / 8-(Fmoc-amino)-3,6-dioxaoctanoic acid
- Fmoc-AEF(Boc)-OH / N/A
- Fmoc-Ala[? CH2NBoc]His(Trt)-OH / N/A
- Fmoc-Ala-CHO / 146803-41-0
- Fmoc-Alaninol / 161529-13-1 / (S)-N-Fmoc-2-amino-1-propanol
- Fmoc-Asp(OAllyl)-OH / 146982-24-3 / Fmoc-L-aspartic acid 4-allyl ester
- Fmoc-Asp(OMpe)-OH / 180675-08-5 / Fmoc-aspartic acid ß-Methylpentyl ester
- Fmoc-Aze-OH / 136552-06-2 / 1-Fmoc-L-azetidine-2-carboxylic acid
- Fmoc-Bip-OH / 199110-64-0
- Fmoc-Chg-OH / 161321-36-4 / Fmoc-L-Cyclohexylglycine
- Fmoc-Cys(SO3Na)-ONa / 163558-30-3
- Fmoc-Cys[Ac-Cys(Trt)-Hcys(S*)-OAll]-OH (Ac-BB) / N/A
- Fmoc-Cys[Boc-Cys(Trt)-Hcys(S*)-OAll]-OH (Boc-BB) / N/A
- Fmoc-D-Ala / 79990-15-1 / 2(R)-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)propanoic acid mono hydrate
- Fmoc-D-Asn(Trt)-OH / 180570-71-2

Fmoc protected Amino Acids

- Fmoc-D-Gln-OH / 112898-00-7 / Fmoc-D-glutamine
- Fmoc-D-Glu(OAllyl)-OH / 204251-33-2
- Fmoc-D-Glu(OtBu)-OH / 104091-08-9
- Fmoc-D-Leu-OH / 114360-54-2
- Fmoc-D-Pfp-OH / 198545-85-6 / (R)-2-(Fmoc-amino)-3-(pentafluorophenyl)propionic acid,
- Fmoc-D-Pentafluorophenylalanine
- Fmoc-D-Phe(2-Me)-OH / 352351-63-4
- Fmoc-D-Phe-Arg-OH / N/A
- Fmoc-D-Pro-OH / 101555-62-8
- Fmoc-D-Ser(tBu)-OH / 128107-47-1
- Fmoc-D-Thr(tBu)-OH / 138797-71-4
- Fmoc-Gly-Gly-Gly-OH / 170941-79-4
- Fmoc-hArg(Pbf)-OH / 401915-53-5
- Fmoc-His(Boc)-OH / 81379-52-4
- Fmoc-His(Trt)-Gly-OH / 1428125-83-0
- Fmoc-His(Trt)-OH / 109425-51-6
- Fmoc-Iva-OH / 857478-30-9
- Fmoc-Lys(Ac)-OH / 159766-56-0
- Fmoc-Lys(Alloc)-OH / 146982-27-6 / N-alpha-Fmoc-N-epsilon-Alloc-L-lysine
- Fmoc-Lys(Mtt)-OH / 167393-62-6
- Fmoc-Lys(Trt)-OH / 111061-54-2
- Fmoc-Met-OH / 71989-28-1
- Fmoc-N-Me-Asp(OtBu)-OH / 152548-66-8 / N-alpha-Fmoc-N-alpha-methyl-L-aspartic acid ß-tert butyl ester
- Fmoc-Octyl-Gly-OH / 193885-59-5
- Fmoc-Pro-D-Ala-OH / 144574-97-0
- Fmoc-Sni-OH / 193693-68-4 / L-1-Fmoc-Nipecotic acid
- Fmoc-tert-Leucine / 132684-60-7 / Fmoc-L-alpha-tert-butyl-Glycine
- Fmoc-THP-OH / 285996-72-7 / Fmoc-4-amino-tetrahydropyran-4-carboxylic acid
- Fmoc-Tyr(Boc-2-aminoethyl)-OH / 1013883-02-7
- Fmoc-Tyr(CH2-CH2-NHBoc)-OH / 1013883-02-7 / (S)-Fmoc-2-amino-3-(4-(Boc-2-aminoethoxy)phenyl)propanoic acid

Boc protected Amino Acids

- Boc-8-amino-3,6-dioaxaoctanoyl-8-amino-3,6-dioaxaoctanoicacid / 1069067-08-8
- Boc-Ado-OH. DCHA / 560088-79-1 / 2-[2-(Boc-amino)ethoxy]ethoxyacetic acid (dicyclohexylammonium) salt
- Boc-D-Arg(Tos)-OH / 61315-61-5
- Boc-D-Asn-OH / 75647-01-7
- Boc-D-Bpa-OH / 117666-94-1 / Boc-4-benzoyl-D-phenylalanine
- Boc-D-His(1-Trt)-OH / 393568-74-6
- Boc-D-Lys(TFA)-OH / 96561-04-5 / N-alpha-Boc-N-epsilon-trifluoroacetyl-D-lysine
- Boc-D-Lys(Z)-OH / 55878-47-2 / N-alpha-Boc-N-epsilon-Z-D-lysine
- Boc-D-Pro-OH / 37784-17-1 / N-alpha-Boc-D-proline
- Boc-D-Thr-OH / 55674-67-4
- Boc-D-Tyr-OH / 70642-86-3
- Boc-D-Val-OH / 22838-58-0 / N-alpha-Boc-D-valine
- Boc-Gly-aldehyde / 89711-08-0
- Boc-His(Trt)-Aib-OH / 2061897-68-3 / ((S)-2-(2-Boc-amino-3-(1-trityl-1H-imidazol-4-yl)propanamido)-2-methylpropanoic acid
- Boc-His(Trt)-Gly-OH / 1428125-85-2
- Boc-His(Trt)-OH / 32926-43-5
- Boc-Lys(Fmoc)-OH / 115186-31-7 / N-alpha-t-Butyloxycarbonyl-N?-(9-fluorenylmethyloxycarbonyl)-D-lysine

CBZ protected Amino AcidsCBZ protected Amino Acids

- Z-Lys(Boc)-OH / 2389-60-8
- Z-Orn(Boc)-OH / 7733-29-1

Fmoc a Amino Acids

- Fmoc-alpha-Me-Ala-OH / 94744-50-0 / Fmoc-Aib-OH
- Fmoc-alpha-Me-Leu / 114360-54-2
- Fmoc-alpha-Me-Lys(Boc)-OH / 1202003-49-3
- Fmoc-alpha-Me-Phe(2F)-OH / 1172127-44-4 / (S)-N-Fmoc-a-Methyl-2-fluorophenylalanine
- Fmoc-alpha-Me-Phe-OH / 135944-05-7
- Fmoc-alpha-Me-Ser(tBu)-OH / 914399-98-7

INFORMEX USA
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07/05/2024 - 09/05/2024
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Philadelphia (changing)
United States of America
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International exhibition on pharmaceutical ingredients and intermediates
08/10/2024 - 10/10/2024
Location fieramilano
Rho (changing)
Italy



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