1.
Full Text
Poly(α-hydroxy acid)s and poly(α-hydroxy acid-co-α-amino acid)s derived from amino acid
Advanced Drug Delivery Reviews, ISSN 0169-409X, 12/2016, Volume 107, pp. 82 - 96
Polyesters derived from the α-hydroxy acids, lactic acid, and glycolic acid, are the most common biodegradable polymers in clinical use. These polymers have...
Poly(α-hydroxy esters) | Ring opening polymerization | Amino acids | Polyesteramide | CANCER-CELLS | O-CARBOXYANHYDRIDES | BIODEGRADABLE POLY(ESTER AMIDE)S | CONTROLLED DRUG-DELIVERY | N-HETEROCYCLIC CARBENES | Poly(alpha-hydroxy esters) | L-LACTIC ACID | TISSUE ENGINEERING APPLICATIONS | BIS(L-PHENYLALANINE) ALPHA,OMEGA-ALKYLENE DIESTERS | PHARMACOLOGY & PHARMACY | RING-OPENING POLYMERIZATION | BIOMEDICAL APPLICATIONS
Poly(α-hydroxy esters) | Ring opening polymerization | Amino acids | Polyesteramide | CANCER-CELLS | O-CARBOXYANHYDRIDES | BIODEGRADABLE POLY(ESTER AMIDE)S | CONTROLLED DRUG-DELIVERY | N-HETEROCYCLIC CARBENES | Poly(alpha-hydroxy esters) | L-LACTIC ACID | TISSUE ENGINEERING APPLICATIONS | BIS(L-PHENYLALANINE) ALPHA,OMEGA-ALKYLENE DIESTERS | PHARMACOLOGY & PHARMACY | RING-OPENING POLYMERIZATION | BIOMEDICAL APPLICATIONS
Journal Article
BBA - Biomembranes, ISSN 0005-2736, 09/2017, Volume 1859, Issue 9, pp. 1679 - 1689
Ceramides are important for skin health, with a multitude of species found in both dermis and epidermis. The epidermis contains linoleic acid- ster-linked...
Ceramides | Lipidomics | Skin | Mass spectrometry | Omega-3 fatty acids | CELLS | LINOLEIC-ACID | BIOCHEMISTRY & MOLECULAR BIOLOGY | THICKNESS HUMAN SKIN | FACTOR RECEPTOR | SEBACEOUS GLAND LIPIDS | BIOPHYSICS | STRATUM-CORNEUM CERAMIDES | FISH-OIL | PERMEABILITY BARRIER | EPIDERMAL SPHINGOLIPIDS | EICOSAPENTAENOIC ACID | Docosahexaenoic Acids - pharmacology | Skin - chemistry | Spectrometry, Mass, Electrospray Ionization | Eicosapentaenoic Acid - pharmacology | Fatty Acids, Omega-3 - pharmacology | Humans | Ceramides - analysis | Ceramides - physiology | Organ Culture Techniques | Skin - drug effects | Phosphates | Dietary supplements | Liquid chromatography | Plant lipids | Cell differentiation | Unsaturated fatty acids | Analysis | Sphingosine | Skin diseases | Arachidonic acid
Ceramides | Lipidomics | Skin | Mass spectrometry | Omega-3 fatty acids | CELLS | LINOLEIC-ACID | BIOCHEMISTRY & MOLECULAR BIOLOGY | THICKNESS HUMAN SKIN | FACTOR RECEPTOR | SEBACEOUS GLAND LIPIDS | BIOPHYSICS | STRATUM-CORNEUM CERAMIDES | FISH-OIL | PERMEABILITY BARRIER | EPIDERMAL SPHINGOLIPIDS | EICOSAPENTAENOIC ACID | Docosahexaenoic Acids - pharmacology | Skin - chemistry | Spectrometry, Mass, Electrospray Ionization | Eicosapentaenoic Acid - pharmacology | Fatty Acids, Omega-3 - pharmacology | Humans | Ceramides - analysis | Ceramides - physiology | Organ Culture Techniques | Skin - drug effects | Phosphates | Dietary supplements | Liquid chromatography | Plant lipids | Cell differentiation | Unsaturated fatty acids | Analysis | Sphingosine | Skin diseases | Arachidonic acid
Journal Article
The Journal of Organic Chemistry, ISSN 0022-3263, 11/2014, Volume 79, Issue 22, pp. 11215 - 11225
We report the stereoselective synthesis of an alkynyl side-chain containing (2S,3R)-α-hydroxy-β-amino acid ((2S,3R)-AHBA) analogues. The Cu(I)-catalyzed...
BETA-AMINO ACIDS | ASYMMETRIC-SYNTHESIS | DIASTEREOSELECTIVE SYNTHESIS | ENANTIOSELECTIVE SYNTHESIS | ABSOLUTE-CONFIGURATION | ALPHA-HYDROXY ESTERS | CHEMISTRY, ORGANIC | PROTEIN-PROTEIN INTERACTIONS | BLUE-GREEN-ALGA | LENS LEUCINE AMINOPEPTIDASE | (3R)-3-AMINODECANOIC ACID | Amino Acids, Neutral - chemical synthesis | Decanoic Acids - chemical synthesis | Amino Acids, Neutral - chemistry | Magnetic Resonance Spectroscopy | Stereoisomerism | Amino Acids - chemistry | Decanoic Acids - chemistry | Dipeptides - chemical synthesis | Structure-Activity Relationship | Amino Acids - chemical synthesis
BETA-AMINO ACIDS | ASYMMETRIC-SYNTHESIS | DIASTEREOSELECTIVE SYNTHESIS | ENANTIOSELECTIVE SYNTHESIS | ABSOLUTE-CONFIGURATION | ALPHA-HYDROXY ESTERS | CHEMISTRY, ORGANIC | PROTEIN-PROTEIN INTERACTIONS | BLUE-GREEN-ALGA | LENS LEUCINE AMINOPEPTIDASE | (3R)-3-AMINODECANOIC ACID | Amino Acids, Neutral - chemical synthesis | Decanoic Acids - chemical synthesis | Amino Acids, Neutral - chemistry | Magnetic Resonance Spectroscopy | Stereoisomerism | Amino Acids - chemistry | Decanoic Acids - chemistry | Dipeptides - chemical synthesis | Structure-Activity Relationship | Amino Acids - chemical synthesis
Journal Article
Tetrahedron Letters, ISSN 0040-4039, 07/2014, Volume 55, Issue 30, pp. 4149 - 4151
An effective and improved procedure is developed for the synthesis of α-hydroxy carboxylic acids by treatment of the corresponding protonated α-amino acid with...
Diazotization | Depsipeptides | Hydroxylation | α-Hydroxy carboxylic acids | CYTOTOXIN | alpha-Hydroxy carboxylic acids | SOLID-PHASE SYNTHESIS | STRATEGY | CONFIGURATION | CHEMISTRY, ORGANIC | TO-ESTER MUTATIONS | CYANOBACTERIUM LYNGBYA-MAJUSCULA | PEPTIDE-SYNTHESIS | TUBULIN | SPONGES | Synthesis (chemistry) | Nitrites | Tetrahedrons | Amino acids | Esters | Derivatives | Carboxylic acids
Diazotization | Depsipeptides | Hydroxylation | α-Hydroxy carboxylic acids | CYTOTOXIN | alpha-Hydroxy carboxylic acids | SOLID-PHASE SYNTHESIS | STRATEGY | CONFIGURATION | CHEMISTRY, ORGANIC | TO-ESTER MUTATIONS | CYANOBACTERIUM LYNGBYA-MAJUSCULA | PEPTIDE-SYNTHESIS | TUBULIN | SPONGES | Synthesis (chemistry) | Nitrites | Tetrahedrons | Amino acids | Esters | Derivatives | Carboxylic acids
Journal Article
1997, ISBN 9783527290932
eBook
2002, Basic and clinical dermatology, ISBN 9780824707224, Volume 22, 257
Exploring the use of fruit acids in the restoration and maintenance of the epidermal layer, this reference details the latest cosmetic, therapeutic, and...
Care and hygiene | drug therapy | methods | Skin Diseases | Chemexfoliation | Skin Aging | Chemical peel | Glycolates | Surgery | Skin | Face | Keratolytic Agents | therapeutic use | Skin - Care and hygiene
Care and hygiene | drug therapy | methods | Skin Diseases | Chemexfoliation | Skin Aging | Chemical peel | Glycolates | Surgery | Skin | Face | Keratolytic Agents | therapeutic use | Skin - Care and hygiene
eBook
Macromolecular Chemistry and Physics, ISSN 1022-1352, 11/2013, Volume 214, Issue 22, pp. 2546 - 2561
Various biobased copolyesters composed of l‐lactic acid (LLA) and side‐chain‐substituted lactic acids (SLAs) with high molecular weight and LLA‐rich...
P(LLA‐co‐SLA)s | side‐chain‐substituted lactic acids | enzymatic degradability | crystal structures | mechanical properties | side-chain-substituted lactic acids | P(LLA-co-SLA)s | POLYMER SCIENCE | MOLECULAR-WEIGHT | CRYSTAL-STRUCTURE | HYDROLYTIC DEGRADATION | X-RAY-SCATTERING | GLASS-TRANSITION TEMPERATURES | MELT POLYCONDENSATION | BIODEGRADABLE POLYMERS | CO-GLYCOLIC ACID | ALPHA-HYDROXY ACIDS | ENZYMATIC DEGRADATION | Enzymes | Lactic acid | Degradation | Copolymers | Crystallites | Molecular structure | Glycolic acid | Mechanical properties | Molecular weight
P(LLA‐co‐SLA)s | side‐chain‐substituted lactic acids | enzymatic degradability | crystal structures | mechanical properties | side-chain-substituted lactic acids | P(LLA-co-SLA)s | POLYMER SCIENCE | MOLECULAR-WEIGHT | CRYSTAL-STRUCTURE | HYDROLYTIC DEGRADATION | X-RAY-SCATTERING | GLASS-TRANSITION TEMPERATURES | MELT POLYCONDENSATION | BIODEGRADABLE POLYMERS | CO-GLYCOLIC ACID | ALPHA-HYDROXY ACIDS | ENZYMATIC DEGRADATION | Enzymes | Lactic acid | Degradation | Copolymers | Crystallites | Molecular structure | Glycolic acid | Mechanical properties | Molecular weight
Journal Article
Tetrahedron Letters, ISSN 0040-4039, 2005, Volume 46, Issue 22, pp. 3815 - 3818
We report here a simple and convenient route for the stereoselective synthesis of ( )-(−)- and ( )-(+)-homocitric acid lactones, which play very important...
Homocitric acid lactones | Nitrogenase | α-Hydroxy dicarboxylic acids | alpha-hydroxy dicarboxylic acids | P-CLUSTER | IRON-MOLYBDENUM COFACTOR | FEMO-COFACTOR | homocitric acid lactones | CHEMISTRY, ORGANIC | MOFE-PROTEIN | CENTRAL LIGAND | nitrogenase
Homocitric acid lactones | Nitrogenase | α-Hydroxy dicarboxylic acids | alpha-hydroxy dicarboxylic acids | P-CLUSTER | IRON-MOLYBDENUM COFACTOR | FEMO-COFACTOR | homocitric acid lactones | CHEMISTRY, ORGANIC | MOFE-PROTEIN | CENTRAL LIGAND | nitrogenase
Journal Article
Angewandte Chemie International Edition, ISSN 1433-7851, 08/2008, Volume 47, Issue 36, pp. 6798 - 6801
You can count on the counterion in ion‐pair intermediates to induce high levels of asymmetry in the title reaction. The efficient transformation proceeds under...
organocatalysis | asymmetric catalysis | ion pairs | Brønsted acids | carbonyl‐ene reaction | Carbonyl-ene reaction | Asymmetric catalysis | Organocatalysis | Ion pairs | ALPHA-HYDROXY ESTERS | TRANSFER HYDROGENATION | HIGH ENANTIOMERIC PURITIES | CHEMISTRY, MULTIDISCIPLINARY | COPPER(II) COMPLEXES | BOND DONORS | DIELS-ALDER REACTION | carbonyl-ene reaction | FRIEDEL-CRAFTS REACTION | Bronsted acids | METAL-FREE | REDUCTIVE AMINATION
organocatalysis | asymmetric catalysis | ion pairs | Brønsted acids | carbonyl‐ene reaction | Carbonyl-ene reaction | Asymmetric catalysis | Organocatalysis | Ion pairs | ALPHA-HYDROXY ESTERS | TRANSFER HYDROGENATION | HIGH ENANTIOMERIC PURITIES | CHEMISTRY, MULTIDISCIPLINARY | COPPER(II) COMPLEXES | BOND DONORS | DIELS-ALDER REACTION | carbonyl-ene reaction | FRIEDEL-CRAFTS REACTION | Bronsted acids | METAL-FREE | REDUCTIVE AMINATION
Journal Article
Molecules, ISSN 1420-3049, 2018, Volume 23, Issue 4, p. 863
AHAs are organic acids with one hydroxyl group attached to the alpha position of the acid. AHAs including glycolic acid, lactic acid, malic acid, tartaric...
Alpha-hydroxy acids | UVB | Keratinocyte | Glycolic acid | Apoptosis | LACTIC-ACID | ACTIVATION | BIOCHEMISTRY & MOLECULAR BIOLOGY | CYCLE ARREST | HACAT | apoptosis | alpha-hydroxy acids | CHEMISTRY, MULTIDISCIPLINARY | keratinocyte | glycolic acid | HUMAN-MELANOMA CELLS | CITRIC-ACID | HUMAN EPIDERMAL-KERATINOCYTES | MALIC-ACID | Formulations | Hydroxy acids | Dermatology | U.V. radiation | Acne | Keratinocytes | Pruritus | Tartaric acid | Damage prevention | Citric acid | Organic acids | Burning | Biological effects | Acids | Incineration | Skin care products | Malic acid | Skin | Lactic acid | Hydroxyl groups
Alpha-hydroxy acids | UVB | Keratinocyte | Glycolic acid | Apoptosis | LACTIC-ACID | ACTIVATION | BIOCHEMISTRY & MOLECULAR BIOLOGY | CYCLE ARREST | HACAT | apoptosis | alpha-hydroxy acids | CHEMISTRY, MULTIDISCIPLINARY | keratinocyte | glycolic acid | HUMAN-MELANOMA CELLS | CITRIC-ACID | HUMAN EPIDERMAL-KERATINOCYTES | MALIC-ACID | Formulations | Hydroxy acids | Dermatology | U.V. radiation | Acne | Keratinocytes | Pruritus | Tartaric acid | Damage prevention | Citric acid | Organic acids | Burning | Biological effects | Acids | Incineration | Skin care products | Malic acid | Skin | Lactic acid | Hydroxyl groups
Journal Article
Journal of the American Chemical Society, ISSN 0002-7863, 08/2017, Volume 139, Issue 31, pp. 10723 - 10732
The ring-opening polymerization (ROP) of O-carboxyanhydrides (OCAs) can give diverse poly(α-hydroxy acid)s (PAHAs) with different functional groups because...
STEREOSPECIFIC COPOLYMERIZATION | CYCLOHEXENE OXIDE | CARBOXYLIC ANHYDRIDE | METATHESIS POLYMERIZATION | 1-SUBSTITUTED CYCLOBUTENES | COMPLEXES | BIOMEDICAL APPLICATIONS | PROPYLENE-OXIDE | CARBON-DIOXIDE | CHEMISTRY, MULTIDISCIPLINARY | POLY(ALPHA-HYDROXY ACIDS) | Polymerization | Chemical reactions | Usage | Zirconium | Chemical properties
STEREOSPECIFIC COPOLYMERIZATION | CYCLOHEXENE OXIDE | CARBOXYLIC ANHYDRIDE | METATHESIS POLYMERIZATION | 1-SUBSTITUTED CYCLOBUTENES | COMPLEXES | BIOMEDICAL APPLICATIONS | PROPYLENE-OXIDE | CARBON-DIOXIDE | CHEMISTRY, MULTIDISCIPLINARY | POLY(ALPHA-HYDROXY ACIDS) | Polymerization | Chemical reactions | Usage | Zirconium | Chemical properties
Journal Article
Chemical and Pharmaceutical Bulletin, ISSN 0009-2363, 2016, Volume 64, Issue 9, pp. 1397 - 1402
The chemical synthesis of the 9α-hydroxy derivatives of chenodeoxycholic and lithocholic acids is reported. For initiating the synthesis of the 9α-hydroxy...
9α-hydroxy-bile acid | monochloroalane | 2,2,6,6-tetramethylpiperidine 1-oxyl free radical | decarbonylation | C-9 5β-steroid hydroxylation | Markovnikov-hydroxylation | Monochloroalane | Decarbonylation | OXIDATION | CHEMISTRY, MEDICINAL | BIOTRANSFORMATIONS | HYDROXYLATION | REACTIVITY | TRANSANNULAR CYCLIZATION | CONFORMATION | CHEMISTRY, MULTIDISCIPLINARY | 9 alpha-hydroxy-bile acid | SECONDARY ALCOHOLS | STEROID NUCLEUS | PHARMACOLOGY & PHARMACY | C-9 5 beta-steroid hydroxylation | TRANSFORMATIONS | CARBOXYLIC-ACIDS | Biological Products - chemical synthesis | Biological Products - chemistry | Chenodeoxycholic Acid - chemical synthesis | Chenodeoxycholic Acid - chemistry | Molecular Conformation | Lithocholic Acid - chemical synthesis | Chenodeoxycholic Acid - analogs & derivatives | Lithocholic Acid - analogs & derivatives | Lithocholic Acid - chemistry | Nuclear magnetic resonance--NMR | Sodium hypochlorite | Cholic acid | Lithium aluminum hydrides | Aluminum chlorides | Deoxygenation | Epoxidation | Oxidation | Catalysis | Sodium chlorite | Chemical synthesis | Hydroxyl groups | Bile acids | Free radicals | Hydroxylation | Aluminum chloride | Carboxylic acids | Derivatives | Deoxycholic acid | Organic chemistry | Vertebrates | Acids | Sodium | Chenodeoxycholic acid | Bile
9α-hydroxy-bile acid | monochloroalane | 2,2,6,6-tetramethylpiperidine 1-oxyl free radical | decarbonylation | C-9 5β-steroid hydroxylation | Markovnikov-hydroxylation | Monochloroalane | Decarbonylation | OXIDATION | CHEMISTRY, MEDICINAL | BIOTRANSFORMATIONS | HYDROXYLATION | REACTIVITY | TRANSANNULAR CYCLIZATION | CONFORMATION | CHEMISTRY, MULTIDISCIPLINARY | 9 alpha-hydroxy-bile acid | SECONDARY ALCOHOLS | STEROID NUCLEUS | PHARMACOLOGY & PHARMACY | C-9 5 beta-steroid hydroxylation | TRANSFORMATIONS | CARBOXYLIC-ACIDS | Biological Products - chemical synthesis | Biological Products - chemistry | Chenodeoxycholic Acid - chemical synthesis | Chenodeoxycholic Acid - chemistry | Molecular Conformation | Lithocholic Acid - chemical synthesis | Chenodeoxycholic Acid - analogs & derivatives | Lithocholic Acid - analogs & derivatives | Lithocholic Acid - chemistry | Nuclear magnetic resonance--NMR | Sodium hypochlorite | Cholic acid | Lithium aluminum hydrides | Aluminum chlorides | Deoxygenation | Epoxidation | Oxidation | Catalysis | Sodium chlorite | Chemical synthesis | Hydroxyl groups | Bile acids | Free radicals | Hydroxylation | Aluminum chloride | Carboxylic acids | Derivatives | Deoxycholic acid | Organic chemistry | Vertebrates | Acids | Sodium | Chenodeoxycholic acid | Bile
Journal Article
Tetrahedron, ISSN 0040-4020, 2002, Volume 58, Issue 40, pp. 7991 - 8035
Arndt–Eistert reaction | Curtius rearrangement | addition to imines | conjugate addition | Arndt-Eistert reaction | Conjugate addition | Addition to imines | CATALYTIC ASYMMETRIC AMINOHYDROXYLATION | CHEMISTRY, ORGANIC | ALPHA,BETA-UNSATURATED CARBONYL-COMPOUNDS | curtius rearrangement | HIGHLY ENANTIOSELECTIVE HYDROGENATION | DIASTEREOSELECTIVE SYNTHESIS | CHIRAL AMMONIA EQUIVALENT | MANNICH-TYPE REACTIONS | MICHAEL-ADDITION | WOLFF REARRANGEMENT | ALPHA-HYDROXY ACIDS
Journal Article
International Journal of Toxicology, ISSN 1091-5818, 9/2017, Volume 36, Issue 5_suppl2, pp. 15S - 21S
Journal Article
Advanced Synthesis & Catalysis, ISSN 1615-4150, 10/2017, Volume 359, Issue 20, pp. 3665 - 3673
A ruthenocenyl phosphino‐oxazoline‐ruthenium complex (RuPHOX−Ru) catalyzed asymmetric hydrogenation of α‐aryl keto acids has been successfully developed,...
Asymmetric hydrogenation | Synthesis | RuPHOX−Ru | Chiral α-hydroxy carboxylic acid | AMINO-ALCOHOLS | ENANTIOSELECTIVITY | ALLYLIC ALKYLATION | CHEMISTRY, ORGANIC | Chiral alpha-hydroxy carboxylic acid | RuPHOX-Ru | H INSERTION REACTION | KETONES | LIGANDS | ESTERS | INHIBITORS | CHEMISTRY, APPLIED | DERIVATIVES | MANDELIC-ACIDS
Asymmetric hydrogenation | Synthesis | RuPHOX−Ru | Chiral α-hydroxy carboxylic acid | AMINO-ALCOHOLS | ENANTIOSELECTIVITY | ALLYLIC ALKYLATION | CHEMISTRY, ORGANIC | Chiral alpha-hydroxy carboxylic acid | RuPHOX-Ru | H INSERTION REACTION | KETONES | LIGANDS | ESTERS | INHIBITORS | CHEMISTRY, APPLIED | DERIVATIVES | MANDELIC-ACIDS
Journal Article