Similar Articles |
|
Chemistry World January 2, 2013 Paul Docherty |
Flueggine A One of the most prolific sources of biologically active natural products is traditional medicines -- whose active components can be exceptionally potent. The Euphorbiaceae family of plants is a productive source of medicinal targets, including the Securinega alkaloids. |
Chemistry World February 28, 2013 Paul Docherty |
Lyconadin A Since its isolation from the clubmoss Lycopodium complanatum in 2001, lyconadina A has been party to three total syntheses. All that interest stems from anti-Alzheimer's activity attributed to the lycopodium family. |
Chemistry World July 30, 2013 Paul Docherty |
Melotenine A Chirality, where would we be without you? Often the bane of the synthetic chemist's life, the challenge of asymmetry is perhaps what makes total synthesis so endlessly intriguing. |
Chemistry World May 29, 2013 Paul Docherty |
Pactamycin A member of a 'rival' field stating that a molecule is 'inaccessible by synthetic organic chemistry' is like a red rag to the proverbial bull. This challenge surrounds analogs of pactamycin, a complex cyclopentane-based target with an exceptionally potent biological profile. |
Chemistry World April 2010 Paul Docherty |
Column: Totally Synthetic When one attempts the first synthesis of a natural product, the set of challenges are often unknown; which intermediates are either inaccessible or unstable, for instance. |
Chemistry World March 2012 Paul Docherty |
Column: Totally Synthetic Ring strain is a fascinating phenomenon - one that is best understood with plastic modelling kits, wearing safety specs for ring sizes of four or less. |
Chemistry World December 2009 Paul Docherty |
Column: Totally Synthetic What turns a good synthesis into a great synthesis are the steps surrounding that motif, something that Darren Dixon from the University of Oxford, UK, exemplifies with this synthesis of Nakadomarin A. |
Chemistry World August 2010 Paul Docherty |
Column: Totally Synthetic The total synthesis of macrolide targets is now a relatively mature field. Any synthesis that bucks these trends grabs attention, with a recent publication of dictyosphaeric acid A by Richard Taylor's team at the University of York, UK, a case in point. |
Chemistry World November 5, 2013 Paul Docherty |
Marcfortines B & C Natural product isolation is generally a tale of a journey to an obscure or inaccessible location, followed by pulping a harmless plant or marine sponge to get at compounds made by some bacteria hiding out in the core. |
Chemistry World November 27, 2012 Paul Docherty |
Pentalenolactone A methyl ester One team that really gets the Pauson -- Khand reaction or the PKR and all its nuances is that led by Zhen Yang at Peking University in Beijing, China. They recently published a very neat synthesis of the intricate pentalenolactone |
Chemistry World July 1, 2012 Paul Docherty |
Vincorine Cage-structured natural products are some of the most appealing (if perhaps not appetising) targets for organic chemists -- perhaps due to their obvious intricacy of form, but also because of their structural rigidity. |
Chemistry World January 2010 Paul Docherty |
Column: Totally Synthetic Of all the natural product classes, the steroid family are perhaps the most prevalent in the public consciousness; from cholesterol to testosterone, their infamy inflates the 'science bit' in countless advertisements. |
Chemistry World March 2011 Paul Docherty |
Column: Totally Synthetic Discovered independently by two chemists in the 1870s, it's remarkable that 140 years later, science is still tweaking and improving the aldol reaction. |
Chemistry World November 2010 Paul Docherty |
Column: Totally Synthetic Perhaps the most familiar (and dull - they do say that familiarity breeds contempt.) chemical reaction to medicinal chemists is the amide bond formation. |
Chemistry World September 20, 2007 Lewis Brindley |
New Catalyst Rings the Changes Organic chemists in the US have developed a method to control the stereochemistry of a useful intramolecular Diels-Alder reaction. |
Chemistry World January 2012 Paul Docherty |
Column: Totally Synthetic What a Japanese team demonstrates in this synthesis of dragmacidin D is the state of the art, uniting all the key fragments using C-H bond couplings. |
Chemistry World October 31, 2012 Paul Docherty |
Epicoccin G The class of natural products known as 2,5-diketopiperazines is both broad and synthetically well-trodden. An important sub-class of these targets are found with a sprinkling of sulfur atoms, and seem particularly well-suited to pathogen-bashing. |
Chemistry World October 2009 Paul Docherty |
Column: Totally Synthetic It's been a while since I've seen such a battle for the 'first publication' of a molecule as has recently been witnessed for haplophytine. |
Chemistry World November 2010 |
Carbon Couplers Take the Prize Three giants of organic chemistry, who pioneered palladium-catalysed cross coupling reactions, have shared this year's Nobel prize. |
Chemistry World May 24, 2007 James Mitchell Crow |
Palladium Coupling in Fewer Steps Look out Suzuki - Canadian chemists have successfully joined up simple benzene ring-like aromatics without any pre-activation. |
Chemistry World February 2011 Paul Docherty |
Column: Totally Synthetic Although most of the natural products I've discussed have had biological activity at the core of the rationale for their synthesis, most organic chemists will admit that an unusual chemical structure is by far the stronger draw. |
Chemistry World November 2011 Paul Docherty |
Column: Totally Synthetic Gelsemoxonine has an extra four-membered azetidine ring, making for a considerable synthetic challenge. |
Chemistry World August 2011 Paul Docherty |
Column: Totally Synthetic Yuanhuapin, a fabulously complex member of the daphnane diterpene orthoester class of natural products, bears an astonishing twelve contiguous stereogenic centres around its seven rings (look closely!). |
Chemistry World February 2010 Paul Docherty |
Column: Totally Synthetic Palau'amine is an alkaloid which has stubbornly held off synthesis for over 15 years. Its nemesis comes in the form of Phil Baran at the Scripps Research Institute, La Jolla, US. |
Chemistry World January 2009 Paul Docherty |
Column: Totally Synthetic In the search for new biologically active natural products, sometimes a team isolating a new compound family will be lucky enough to find one active member. |
Chemistry World July 2010 Paul Docherty |
Column: Totally Synthetic Isolated in 1986, the steroid family of aplykurodinones have shown selective cytotoxicity in a variety of cancer cell lines, and add to the phenomenal list of steroids with potent medicinal properties. |
Chemistry World August 2008 Paul Docherty |
Column: Totally Synthetic Impersonating nature isn't easy, and biomimetic syntheses are remarkable in two senses. |
Chemistry World July 9, 2012 Phillip Broadwith |
'Molecular cobra' turns C-H to C=C A reagent developed by US chemists can selectively introduce synthetically useful C=C double bonds into unactivated carbon chains, guided by an activating group attached to a nearby oxygen or nitrogen atom. |
Chemistry World September 2009 Paul Docherty |
Column: Totally Synthetic Maduropeptin chromophore (the active component of a chromopore-protein complex, noted as for its potent antitumor and antibiotic activity) is built of two distinct domains |
Chemistry World October 2008 Paul Docherty |
Column: Totally Synthetic Samuel Danishefsky of Columbia University (and the Sloan-Kettering Institute for cancer research), has focused on function rather than family. His many synthetic conquests are unified by their cancer-busting potential. |
Chemistry World April 2009 Paul Docherty |
Column: Totally Synthetic Perhaps the most frustrating part of being a synthetic chemist is the jealousy with which we must regard nature |
Chemistry World August 30, 2009 Phillip Broadwith |
C-H oxidation proves its worth US researchers are going against the grain of total synthesis and developing new approaches to complex molecules. |
Chemistry World September 2, 2013 Paul Docherty |
Steviol A discussion is presented on new ways to synthesize the diterpenoid steviol. |
Chemistry World May 2012 Paul Docherty |
Column: Totally Synthetic Hopeanol and hopeahainol A |
Chemistry World November 2, 2015 |
Batzelladine B Of all the diverse substances that nature produces, the alkaloids -- small molecules containing basic nitrogen -- have had the greatest impact on human history and health. |
Chemistry World October 11, 2012 Ian Le Guillou |
Turbo-charged Diels-Alder reaction The Diels - Alder reaction is one that sticks in the mind of even the most reluctant chemistry student -- there is a certain elegance in the ring formation from an alkene and diene. |
Chemistry World July 30, 2014 |
Psylloborine A It's a somewhat surprising assertion that almost a fifth of natural products are thought to include a dimerization step somewhere in their biosynthesis. |
Chemistry World January 28, 2015 |
Rubriflordilactone A It's likely that organic chemists have been practicing retrosynthesis in one form or another for at least a century, and certainly for decades before E J Corey formalized the concept in the mid-1990s |
Chemistry World September 2011 Paul Docherty |
Column: Totally Synthetic Corey Stephenson of Boston University is an expert a type of reaction called photochemical reduction-oxidation. He has charmed photons into performing many chemical tricks, but one is a photoredox dehalogenation using blue light and a ruthenium bipyridyl catalyst. |
Chemistry World April 2012 Paul Docherty |
Column: Totally Synthetic Detecting rearrangements still seems like an abstract ability for aspiring synthetic chemists. Erick Carreira's synthesis of indoxamycin B is a great case in point, employing two rearrangement reactions. |
Chemistry World March 25, 2011 Simon Hadlington |
New synthesis for chiral anticancer compound The promising anticancer compound nutlin-3 is likely to become more widely available to researchers thanks to a new synthetic protocol developed by US chemists. |
Chemistry World May 8, 2014 |
Mandelalide A The recent synthesis of the proposed structure of mandelalide A is a good example of a well-designed route that seamlessly integrates some cutting-edge chemistry. |
Chemistry World October 2010 Paul Docherty |
Barekoxide and barekol Like most scientists, organic chemists can often obsess about a problem, endlessly pursuing the perfect yield or enantioselectivity, often leading to tears and broken glassware. |
Chemistry World February 19, 2010 Simon Hadlington |
Forcing stereoselectivity on reactive cations Chemists in the US have devised a dual catalyst strategy to tame the highly reactive iminium ion to give a high degree of stereochemical control over subsequent reactions of the ion. |
Chemistry World May 2011 Paul Docherty |
Column: Totally Synthetic The ability to understand molecular structure is perhaps both our greatest skill and largest encumbrance as scientists. A quick glance at the structure of a target such as nanolobatolide tells us much about its connectivity and the manner in which it might react. |
Chemistry World June 2010 Paul Docherty |
Column: Totally Synthetic Although its chemistry is mature and varied, my use of silicon reagents in my synthetic forays has been limited to a somewhat clumsy use of hydroxyl protecting groups. |
Chemistry World January 29, 2014 |
Organic matter: Indoxamycins A, C and F In 2012, Erick Carreira's group in Zurich reported the total synthesis of indoxamycin B. 1 This 24-step organometallic tour de force resulted in a structural reassignment and set the bar rather high for future work on this family. |
Chemistry World June 1, 2012 Paul Docherty |
atrop-Abyssomicin C This member of the abyssomicin family is the only one to achieve bacteria-bashing prowess, and is also the only one to feature atropisomerism -- a relatively unusual form of stereoisomerism in naturally occurring species |
Chemistry World August 16, 2009 Tom Bond |
Catalyst free carbon-carbon bond formation The method offers an environmentally friendly way to form one of the most important bonds in organic synthesis. |
Chemistry World October 1, 2012 Paul Docherty |
Prostaglandin F2I There's been no shortage of grant funding for synthetic chemistry of the prostaglandins, keeping some of the finest minds in organic chemistry engaged over the last five decades. |