X
Search Filters
Format Format
Subjects Subjects
Subjects Subjects
X
Sort by Item Count (A-Z)
Filter by Count
indole alkaloids (82) 82
chemistry, organic (79) 79
apocynaceae (65) 65
alkaloids (60) 60
chemistry, medicinal (48) 48
kopsia (48) 48
plant sciences (45) 45
index medicus (44) 44
leaves (35) 35
molecular structure (32) 32
biochemistry & molecular biology (30) 30
chemistry, multidisciplinary (29) 29
pharmacology & pharmacy (27) 27
derivatives (24) 24
alkaloids - chemistry (22) 22
indole alkaloids - chemistry (22) 22
stereoisomerism (21) 21
indole (18) 18
malaysian kopsia (18) 18
apocynaceae - chemistry (17) 17
indole alkaloid (16) 16
moiety (15) 15
nmr (14) 14
indole alkaloids - isolation & purification (13) 13
alkaloid (12) 12
carbon skeleton (12) 12
humans (12) 12
rhazinilam (12) 12
synthesis (12) 12
a-c (11) 11
absolute-configuration (11) 11
analysis (11) 11
kopsia-lapidilecta (11) 11
kopsia-tenuis (11) 11
molecular conformation (11) 11
plants, medicinal - chemistry (11) 11
ring (11) 11
animals (10) 10
antineoplastic agents, phytogenic - chemistry (10) 10
antineoplastic agents, phytogenic - pharmacology (10) 10
drug screening assays, antitumor (10) 10
indole alkaloids - pharmacology (10) 10
indoles (10) 10
kopsia-flavida blume (10) 10
kopsia-larutensis (10) 10
nuclear magnetic resonance, biomolecular (10) 10
-lundurine (9) 9
cyclization (9) 9
cyclopropyl moiety (9) 9
griffithii (9) 9
indoles - chemistry (9) 9
kopsia species (9) 9
kopsia teoi (9) 9
larutensis (9) 9
magnetic resonance spectroscopy (9) 9
natural-products (9) 9
antineoplastic agents, phytogenic - isolation & purification (8) 8
catalysis (8) 8
kb cells (8) 8
kopsia-arborea (8) 8
malaysia (8) 8
plant bark - chemistry (8) 8
plants (8) 8
thailand (8) 8
total synthesis (8) 8
vincristine - pharmacology (8) 8
yunnan kopsia (8) 8
alkaloids - chemical synthesis (7) 7
arborea (7) 7
biologically-active aspidofractinine (7) 7
biosynthesis (7) 7
in-vitro (7) 7
indole alkaloids - chemical synthesis (7) 7
secologanin tryptamine alkaloids - chemistry (7) 7
alkaloids - isolation & purification (6) 6
alkaloids - pharmacology (6) 6
alstonia - chemistry (6) 6
aspidofractinine (6) 6
asymmetric total-synthesis (6) 6
chemical properties (6) 6
chemistry, applied (6) 6
cytotoxicity (6) 6
kopsia hainanensis (6) 6
kopsia singapurensis (6) 6
kopsinitarine (6) 6
lapidilecta alkaloid-lapidilectine-b (6) 6
models, molecular (6) 6
plant extracts - chemistry (6) 6
rats (6) 6
research (6) 6
scholaris (6) 6
skeleton (6) 6
structure elucidation (6) 6
teoi (6) 6
total-synthesis (6) 6
totalsynthese (6) 6
alkylation (5) 5
chemistry (5) 5
concise (5) 5
crystallography, x-ray (5) 5
more...
Language Language
Publication Date Publication Date
Click on a bar to filter by decade
Slide to change publication date range


Chemical Society reviews, ISSN 0306-0012, 10/2018, Volume 47, Issue 21, pp. 818 - 829
Direct bond formation between two C-H bonds is most challenging but imperative for efficient organic synthesis. Recently, significant progress has been made in... 
Alkaloids | Oxidizing agents | Phenols | Chemical reactions | Coupling | Nucleophiles | Substrates
Journal Article
Journal of the American Chemical Society, ISSN 0002-7863, 03/2016, Volume 138, Issue 11, pp. 3671 - 3674
The total synthesis of lundurines A–C has been accomplished in racemic and enantiopure forms in 11–13 and 12–14 steps, respectively, without... 
STRATEGY | REVERSE ENE REACTION | STEREOCHEMISTRY | INDOLE ALKALOIDS | HYDROGEN SHIFT | (+/-)-LUNDURINE | REARRANGEMENTS | KOPSIA-TENUIS | CHEMISTRY, MULTIDISCIPLINARY | (-)-LUNDURINE | STEREOGENICITY TRANSFER | Gold compounds | Chemical properties | Research | Chemical synthesis | Analysis | Isomerization | Gold | Synthesis | Olefins | Migration | Extrusion | Condensation | Alkynes | Communication
Journal Article
Synthesis, ISSN 0039-7881, 10/2013, Volume 45, Issue 20, pp. 2813 - 2823
Abstract Due to their structural diversity, elegant polycyclic molecular architecture, and biological activity, the indole alkaloids have been investigated by... 
short review | natural products | indoles | alkaloids | biosynthesis | polycycles | 3,4-SECOAKUAMMILAN DERIVATIVES | ECHITAMINE | PICRALIMA-KLAINEANA | LEAVES | CHEMISTRY, ORGANIC | KOPSIA-FLAVIDA BLUME | IN-VITRO | ALSTONIA-SCHOLARIS | INDOLE ALKALOIDS | FEEDING EXPERIMENTS
Journal Article
Planta Medica, ISSN 0032-0943, 11/2012, Volume 78, Issue 17, pp. 1881 - 1884
Abstract Three new indole alkaloids, named kopsihainin D ( 1 ), kopsihainin E ( 2 ), and kopsihainin F ( 3 ), along with nine known compounds ( 4 – 12 ) were... 
Natural Product Chemistry | Apocynaceae | indole alkaloids | Kopsia hainanensis | antimicrobial activity | CHEMISTRY, MEDICINAL | YUNNAN KOPSIA | LEAVES | GRIFFITHII | PLANT SCIENCES | OFFICINALIS | ARBOREA | PHARMACOLOGY & PHARMACY | DERIVATIVES | Care and treatment | Bacterial infections | Research | Health aspects | Indole
Journal Article
Journal of the American Chemical Society, ISSN 0002-7863, 02/2014, Volume 136, Issue 8, pp. 3312 - 3317
Divergent total syntheses of (−)-kopsifoline D and (−)-deoxoapodine are detailed from a common pentacyclic intermediate 15, enlisting the late-stage formation... 
DIELS-ALDER REACTIONS | KOPSIA | INTRAMOLECULAR DIELS-ALDER/1,3-DIPOLAR CYCLOADDITION | NATURAL-PRODUCTS | VINBLASTINE ANALOGS | REGIOSPECIFIC TOTAL SYNTHESIS | INDOLE ALKALOIDS | 1,3,4-OXADIAZOLES | ASYMMETRIC TOTAL-SYNTHESIS | CHEMISTRY, MULTIDISCIPLINARY | ASPIDOSPERMA ALKALOIDS | Diels-Alder reactions | Valence | Synthesis | Natural products | Cascades | Esters | Formations | Bonding
Journal Article
Natural product reports, ISSN 0265-0568, 2018, Volume 35, Issue 6, pp. 559 - 574
Covering: up to the end of 2017Enantioselective Pd-catalyzed allylic alkylations of prochiral enolates represent a powerful tool for the construction of... 
Journal Article
ORGANIC CHEMISTRY FRONTIERS, ISSN 2052-4129, 01/2018, Volume 5, Issue 2, pp. 273 - 287
Lapidilectines, grandilodines, lundurines and tenuisines are indole alkaloids, isolated from plants of Kopsia genus. They feature a common indole-fused... 
INTERMOLECULAR REACTIONS | METAL-CATALYZED REACTION | ACID | CONCISE TOTAL-SYNTHESIS | A-C | CYCLOPROPANATION | CHEMISTRY, ORGANIC | KOPSIA-TENUIS | DERIVATIVES | HIGHLY EFFICIENT | CYCLIZATION | Alkaloids | Construction | Cyclopropane | Indole | Construction methods | Cyclohexane | Intermediates
Journal Article
Angewandte Chemie International Edition, ISSN 1433-7851, 10/2017, Volume 56, Issue 41, pp. 12624 - 12627
Enantioselective Pd‐catalyzed allylic alkylations of dihydropyrido[1,2‐a]indolone (DHPI) substrates were used to construct the C20‐quaternary stereocenters of... 
stereodivergent cyclizations | asymmetric catalysis | total synthesis | monoterpene indole alkaloids | allylic alkylation | CONCISE | HYDROBORATION | FORMAL SYNTHESIS | KOPSIA | CHEMISTRY, MULTIDISCIPLINARY | (+/-)-1-ACETYLASPIDOALBIDINE | DECARBOXYLATIVE ALLYLATION | (+/-)-KOPSIHAINANINE | TETRAFLUOROBORATE | ASYMMETRIC TOTAL-SYNTHESIS | ASPIDOSPERMA ALKALOIDS
Journal Article
Angewandte Chemie International Edition, ISSN 1433-7851, 06/2017, Volume 56, Issue 24, pp. 6942 - 6945
A novel cyclization reaction of methylenemalonate with indoles is reported, and it provides efficient access to a variety of hexahydrocarbazoles. The... 
cyclizations | enantioselectivity | copper | heterocycles | ligand effects | ASYMMETRIC CATALYSIS | DIELS-ALDER REACTIONS | KOPSIA | STRATEGY | (+/-)-ASPIDOPHYLLINE | CHEMISTRY, MULTIDISCIPLINARY | BIS(OXAZOLINE) COPPER(II) COMPLEXES | AKUAMMILINE | VERSATILE | CONSTRUCTION | INDOLE ALKALOIDS | Alkaloids | Transformation | Catalysts | Quaternary | Ligands | Indoles | Enantiomers
Journal Article
Synlett, ISSN 0936-5214, 04/2015, Volume 26, Issue 6, pp. 815 - 819
Abstract A preliminary investigation into the prospect of a common synthetic intermediate for the synthesis of a variety of indole alkaloids has led to a... 
letter | piperidine | quebrachamine | alkaloid | heterocycles | natural product | ENANTIOSELECTIVE SYNTHESIS | KOPSIA | VINCADIFFORMINE | APOCYNACEAE | REACTIVITY | CHEMISTRY, ORGANIC | INDOLE ALKALOIDS | DERIVATIVES
Journal Article
Chemistry – A European Journal, ISSN 0947-6539, 05/2018, Volume 24, Issue 25, pp. 6547 - 6550
Journal Article
Synthesis, ISSN 0039-7881, 06/2016, Volume 48, Issue 12, pp. 1910 - 1919
Abstract A general approach to functionalized 5,6,7,8-tetrahydroindolizines (THIs) is disclosed. The THIs are directly formed from Al(OTf) 3 -catalyzed, formal... 
special topic | tetrahydroindolizines | fused-ring systems | ring-opening cyclizations | donor-acceptor cyclopropanes | heterocycles | formal homo-Nazarov cyclization | 1,3-DIPOLAR CYCLOADDITIONS | RHAZINILAM | INDOLIZINES | KOPSIA | 1,3-DICARBONYL COMPOUNDS | ALKYLATION | CHEMISTRY, ORGANIC | 5,6,7,8-TETRAHYDROINDOLIZINES | CMV423 | EFFICIENT ACCESS | ALKALOIDS
Journal Article
Chemistry – A European Journal, ISSN 0947-6539, 09/2015, Volume 21, Issue 38, pp. 13284 - 13290
Journal Article
Organic Letters, ISSN 1523-7060, 07/2016, Volume 18, Issue 14, pp. 3490 - 3493
A new monoterpenoid indole alkaloid, kopsiyunnanine K, was isolated from Kopsia arborea. Its intriguing rearranged structure and absolute configuration, which... 
YUNNAN KOPSIA-ARBOREA | CHEMISTRY, ORGANIC | ASPIDOFRACTININE | PERICINE PRECURSOR | DERIVATIVES | HAINANENSIS
Journal Article