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Class Information
Number: 548/497
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Heterocyclic carbon compounds containing a hetero ring having chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) or nitrogen as the only ring hetero atoms (class 540, subclass 1) > Hetero ring is five-membered consisting of one nitrogen and four carbons (e.g., halopyrrolidines, etc.) > Polycyclo ring system having the five-membered hetero ring as one of the cyclos > Bicyclo ring system having the five-membered hetero ring as one of the cyclos (e.g., octahydroindoles, etc.) > The bicyclo ring system consists of the five-membered hetero ring and a benzene ring (e.g., indole, etc.) > Having -c(=x)-, wherein x is chalcogen, attached indirectly to ring carbon of the five-membered hetero ring by an acyclic carbon or acyclic carbon chain (e.g., indole-3-acetic acid, etc.) > Acyclic nitrogen bonded directly to the acyclic carbon or acyclic carbon chain > The acyclic carbon or acyclic carbon chain is further unsubstituted or alkyl substituted only (e.g., tryptophane, etc.) > Processes
Description: Processes for preparing the compound, or for separating the compound from impurities or from the reaction mixture.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7297800 |
Process of producing glutamate derivatives |
Nov. 20, 2007 |
| 7030248 |
Isolation of natural L-.beta.-3-indolylalanine and enrichment of natural aliphatic amino acid mixtures with natural L-.beta.-3-indolylalanine |
Apr. 18, 2006 |
| 6541644 |
Isolation of natural L-.beta.-3-indolylalanine and enrichment of natural aliphatic amino acid mixtures with natural L-.beta.-3-indolylalanine |
Apr. 1, 2003 |
| 6359061 |
Amide compound libraries |
Mar. 19, 2002 |
| 6284897 |
Method for crystallizing tryptophan |
Sep. 4, 2001 |
| 6207686 |
Endothelin antagonists |
Mar. 27, 2001 |
| 5945542 |
Isolation of natural L-.beta.-3-indolylalanine and enrichment of natural aliphatic amino acid mixtures with natural L-.beta.-3-indolylalanine |
Aug. 31, 1999 |
| 5892112 |
Process for preparing synthetic matrix metalloprotease inhibitors |
Apr. 6, 1999 |
| 5886191 |
Amidinoindoles, amidinoazoles, and analogs thereof |
Mar. 23, 1999 |
| 5773617 |
Deallylation reagent and deallylation method using said reagent |
Jun. 30, 1998 |
| 5756761 |
Process for drying hydrophobic amino acids with improved process for increased bulk density |
May. 26, 1998 |
| 5750767 |
Synthesis and use of amino acid fluorides as peptide coupling reagents |
May. 12, 1998 |
| 5712418 |
Synthesis and use of amino acid fluorides as peptide coupling reagents |
Jan. 27, 1998 |
| 5703106 |
Antagonists of endothelin receptors |
Dec. 30, 1997 |
| 5679852 |
Process for the production of DTPA-monoamides of the central carboxylic acid and their use as pharmaceutical agents |
Oct. 21, 1997 |
| 5635379 |
D-2-alkyl-tryptophan and peptides containing same |
Jun. 3, 1997 |
| 5622983 |
N-substituted cycloalkyl and polycycloalkyl .alpha.-substituted Trp-Phe- and phenethylamine derivatives |
Apr. 22, 1997 |
| 5608078 |
Phosphonomethyldipeptides and process for preparation thereof |
Mar. 4, 1997 |
| 5506362 |
Process for the preparation of an .alpha.-amino acid amide |
Apr. 9, 1996 |
| 5329014 |
Method for recovering optically active tryptophan |
Jul. 12, 1994 |
| 5300653 |
Separation method of amino acids |
Apr. 5, 1994 |
| 5283343 |
2-aryl substituted N-acetyltryptamines and process of preparing such |
Feb. 1, 1994 |
| 5210215 |
Tryptophane and 3-indolepyruvic acid, methods of production therefor |
May. 11, 1993 |
| 5118815 |
Method for crystallization of amino acids |
Jun. 2, 1992 |
| 5101036 |
Process for the preparation of N-hydroxy-alpha-amino acid amides |
Mar. 31, 1992 |
| 5085991 |
Process of preparing purified aqueous indole solution |
Feb. 4, 1992 |
| 5070208 |
Method for crystallization of optically active tryptophan |
Dec. 3, 1991 |
| 5057615 |
Process for purifying tryptophan |
Oct. 15, 1991 |
| 4980096 |
Photolabile blocked surfactants |
Dec. 25, 1990 |
| 4978759 |
Process for the stereospecific synthesis of optically pure 4-amino-3-hydroxycarboxylic acid derivatives |
Dec. 18, 1990 |
| 4912228 |
Process of extraction of amino acids from aqueous solutions thereof |
Mar. 27, 1990 |
| 4886888 |
Extraction of amino an acid from aqueous mixtures thereof |
Dec. 12, 1989 |
| 4886889 |
Process for recovery of an amino acid from aqueous mixtures thereof |
Dec. 12, 1989 |
| 4837371 |
Process for concentration of an aqueous solution of amino acid |
Jun. 6, 1989 |
| 4837332 |
Process for blocking amino acids with the tertiary-alkoxycarbonyl group |
Jun. 6, 1989 |
| 4822890 |
Method for the production of amino terminus protected naturally occurring amino acids |
Apr. 18, 1989 |
| 4803284 |
Processes for the preparation of 3-amino-2-(5-methoxy-1H-indol-3-yl) propionic acid monohydrate |
Feb. 7, 1989 |
| 4795595 |
Taurine derivatives |
Jan. 3, 1989 |
| 4778808 |
Feed additive containing tryptophan |
Oct. 18, 1988 |
| 4769474 |
Process for purifying tryptophane |
Sep. 6, 1988 |
| 4749786 |
.alpha.-amino acids through catalytic reaction of CO and a hydroxyl compound with enamides |
Jun. 7, 1988 |
| 4721803 |
Method of making a diastereomeric mixture containing two diastereomeric N-acyl-amino acid esters |
Jan. 26, 1988 |
| 4718994 |
Method for preparing hydroxy compounds of aromatic and heteroaromatic series |
Jan. 12, 1988 |
| 4710574 |
.alpha.-amino acids through catalytic reaction of CO and a hydroxyl compound with enamides |
Dec. 1, 1987 |
| 4661606 |
Extraction of amino acids from aqueous mixtures and quaternary ammonium salt intermediates produced therein |
Apr. 28, 1987 |
| 4644067 |
Process for the extraction of amino acids from an aqueous phase |
Feb. 17, 1987 |
| 4568754 |
Processes for the preparation of derivatives of 2-[3-(3-indolyl) 2-amino propionyloxy] acetic acid |
Feb. 4, 1986 |
| 4535167 |
Chiral, N-protected, N-substituted .alpha.-amino acids |
Aug. 13, 1985 |
| 4535177 |
N-substituted amino acid derivatives |
Aug. 13, 1985 |
| 4481362 |
Process for preparing optically active tryptophanes |
Nov. 6, 1984 |
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