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chemistry, organic (19) 19
protected morpholines (7) 7
chemistry, multidisciplinary (6) 6
enantioselective synthesis (6) 6
index medicus (6) 6
protected peptides (5) 5
aldehydes (4) 4
amides (4) 4
derivatives (4) 4
organocatalysis (4) 4
piperazines (4) 4
protected peptide-fragments (4) 4
solid-phase synthesis (4) 4
supports (4) 4
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article (3) 3
biochemistry & molecular biology (3) 3
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chemistry, medicinal (3) 3
cleavage (3) 3
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enantioselective (3) 3
life sciences (3) 3
n-protected 2-piperidinones (3) 3
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natural-population (2) 2
nitrogen-heterocycles (2) 2
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piperazines - chemistry (2) 2
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species diversity (2) 2
tyrosine (2) 2
-sparteine surrogate (1) 1
2,6-disubstituted piperazines (1) 1
2-dimensional gel-electrophoresis (1) 1
2-substituted piperazines (1) 1
3-phase test (1) 1
5-fluoro-2 '-deoxyuridine (1) 1
5-fluoro-2′-deoxyuridine (1) 1
[chim.cata]chemical sciences/catalysis (1) 1
[chim.coor]chemical sciences/coordination chemistry (1) 1
[chim.inor]chemical sciences/inorganic chemistry (1) 1
[chim.orga]chemical sciences/organic chemistry (1) 1
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Tetrahedron Letters, ISSN 0040-4039, 10/2019, Volume 60, Issue 40, p. 151104
In the course of our drug discovery programs, we had need to access chiral, 2-substituted thiomorpholines and their oxidized congeners, thiomorpholine... 
Thiomorpholine | Enantioselective | Organocatalysis | Thiomorpholine 1,1-dioxide | PROTECTED MORPHOLINES | CHEMISTRY, ORGANIC | ALDEHYDES | DERIVATIVES | PIPERAZINES
Journal Article
Tetrahedron Letters, ISSN 0040-4039, 03/2015, Volume 56, Issue 10, pp. 1276 - 1279
A short, high-yielding protocol involving the enantioselective α-chlorination of aldehydes has been developed for the enantioselective synthesis of... 
Azetidine | Enantioselective | Organocatalysis | Aziridine | PROTECTED MORPHOLINES | CHEMISTRY, ORGANIC | PIPERAZINES | Enantiomers | organocatalysis | azetdine | aziridine | enantioselective
Journal Article
Synthesis, ISSN 0039-7881, 06/2017, Volume 49, Issue 12, pp. 2589 - 2604
Abstract Piperazine ranks as the third most common N -heterocycle appearing in small-molecule pharmaceuticals. This review highlights recent advances in... 
review | synthesis | catalysis | heterocycle | cyclization | piperazine | ENANTIOSELECTIVE SYNTHESIS | NITROGEN-HETEROCYCLES | BUILDING-BLOCKS | SNAP REAGENTS | CHEMISTRY, ORGANIC | ARYL PIPERAZINES | DIASTEREOSELECTIVE SYNTHESIS | PROTECTED MORPHOLINES | C-H OXIDATION | SATURATED N-HETEROCYCLES | ASYMMETRIC HYDROGENATION
Journal Article
Journal of the American Chemical Society, ISSN 0002-7863, 01/2016, Volume 138, Issue 2, pp. 651 - 659
Journal Article
Tetrahedron Letters, ISSN 0040-4039, 07/2013, Volume 54, Issue 28, pp. 3627 - 3629
In this Letter, we describe a short, high yielding protocol for the enantioselective (87–96% ee) and general synthesis of β-fluoroamines and previously... 
β-fluoroamine | Enantioselective | γ-fluoroamine | Organocatalysis | ANTAGONIST | gamma-fluoroamine | CHEMISTRY, ORGANIC | ALDEHYDES | AZIRIDINES | PIPERAZINES | MEDICINAL CHEMISTRY | PROTECTED MORPHOLINES | REDUCTION | NITRILES | FLUORINE | beta-fluoroamine
Journal Article
Bioorganic & Medicinal Chemistry Letters, ISSN 0960-894X, 12/2014, Volume 24, Issue 24, pp. 5749 - 5751
Journal Article
Angewandte Chemie International Edition, ISSN 1433-7851, 04/2017, Volume 56, Issue 16, pp. 4612 - 4616
Journal Article
Asian Journal of Organic Chemistry, ISSN 2193-5807, 10/2013, Volume 2, Issue 10, pp. 812 - 823
Stereoselective construction of chlorinated chiral carbon centers is a highly valuable operation because the resulting chiral chlorides serve as versatile... 
organocatalysis | Lewis acids | asymmetric catalysis | chlorination | SN2 | Chlorination | Asymmetric catalysis | Organocatalysis | ASYMMETRIC FLUORINATION | S(N)2 | COMPLEXES | CHEMISTRY, ORGANIC | KETOESTERS | ALDEHYDES | BETA-KETO-ESTERS | ACID HALIDES | PROTECTED MORPHOLINES | CHLORIDES | ACCESS
Journal Article
The Journal of Organic Chemistry, ISSN 0022-3263, 04/2001, Volume 66, Issue 7, pp. 2240 - 2245
A new “safety catch” linker for esters has been synthesized on polystyrene resin. This 2-tert-butoxyphenol resin 10 may be acylated to give a relatively stable... 
PROTECTED PEPTIDE-FRAGMENTS | CHEMISTRY, ORGANIC | Physiological aspects | Esters | Chemistry, Organic | Research | Acids | Polystyrene
Journal Article
The Journal of Organic Chemistry, ISSN 0022-3263, 06/1997, Volume 62, Issue 12, pp. 3880 - 3889
A convergent approach using two key intermediates, segment A [a l-proline-l-α-hydroxy-β-homoarginine-d-phenylalanine (Pro-hArg-d-Phe) tripeptide] and segment B... 
PROTECTED AMINO-ACIDS | TRANSFORMATION | K EE CHEMISTRY, ORGANIC | PEPTIDES | REAGENTS | POTENT THROMBIN INHIBITORS | CHEMISTRY, ORGANIC | KETO ESTER DERIVATIVES | ALPHA-DIKETONE | Amides | Synthesis | Peptides | Analysis | Organic compounds
Journal Article
Tetrahedron, ISSN 0040-4020, 1995, Volume 51, Issue 5, pp. 1449 - 1458
The handle N-[(9-hydroxymethyl)-2-fluorenyl]succinamic acid (HMFS) is reported for the preparation of protected peptide segments in combination with a Boc/Bzl... 
PROTECTED PEPTIDES | ANCHOR | ACID | SEQUENCE | CHEMISTRY, ORGANIC | POLYMERIC SUPPORTS | DERIVATIVES | NPE-RESIN | OLIGONUCLEOTIDES
Journal Article
Tetrahedron, ISSN 0040-4020, 1997, Volume 53, Issue 49, pp. 16767 - 16782
β-Phenylsetanyl α-oxoesters 2 were prepared by N-phenylselanyl morpholine treatment of α-oxoesters 1, oxidized into β-unsaturated α- oxoesters 5 and subjected... 
KETONES | K EE CHEMISTRY, ORGANIC | ACIDS | PROTECTED ALLYLIC AMINES | ESTERS | CHEMISTRY, ORGANIC | ALDEHYDES | SELENIDES | USEFUL REAGENT
Journal Article
Tetrahedron Letters, ISSN 0040-4039, 1991, Volume 32, Issue 33, pp. 4207 - 4210
Journal Article
Tetrahedron Letters, ISSN 0040-4039, 03/1992, Volume 33, Issue 13, pp. 1775 - 1778
N-[9-hydroxymethyl)-2-fluorenyl] succinamic acid may be used as an anchoring linkage for the preparation of protected peptide segments in combination with... 
base-labile handle | convergent solid-phase peptide synthesis | protected peptides | PROTECTED PEPTIDES | RESIN | FRAGMENTS | CONVERGENT SOLID-PHASE PEPTIDE SYNTHESIS | MILD CONDITIONS | SEGMENTS | ACIDS | SUPPORTS | BASE-LABILE HANDLE | CHEMISTRY, ORGANIC | CLEAVAGE
Journal Article
Journal Article
Tetrahedron Letters, ISSN 0040-4039, 05/2004, Volume 45, Issue 21, pp. 4167 - 4169
Nitrogen derivatives of carbonyl compounds such as oximes, hydrazones, and semicarbazones were found to be excellent candidates for the Willgerodt-Kindler... 
Protected carbonyl compounds | Thiomorpholides | Solvent-free conditions | Willgerodt–Kindler reaction | Willgerodt-Kindler reaction | thiomopholides | CHEMISTRY, ORGANIC | SYSTEMS | protected carbonyl compounds | THIOAMIDES | THIOESTERS | solvent-free conditions
Journal Article
Journal of Pharmaceutical Sciences and Research, 2009, Volume 1, Issue 3, pp. 11 - 22
Journal Article
Tetrahedron, ISSN 0040-4020, 07/2018, Volume 74, Issue 30, pp. 4036 - 4046
A practical synthetic method for the direct synthesis of unsymmetrically substituted ureas from -Alloc-, -Cbz-, and -Boc-protected amines is described. In this... 
Urea synthesis | DABAL-Me3 | Unsymmetrical ureas | Protected carbamates | DABAL-Me
Journal Article
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