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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 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 February 2012 Paul Docherty |
Column: Totally Synthetic Medium rings are a beguiling feature found in a host of natural products, owing to their behavioral oddities.  |
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 June 2011 |
Column: Totally Synthetic I've never heard of the Polonovski-Potier reaction, the keystone of a remarkable synthesis by a team led by Tohru Fukuyama at the University of Tokyo, Japan.  |
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 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 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 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 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 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.  |
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 27, 2008 Lewis Brindley |
Bryostatin Synthesis Made Simple US chemists have dramatically shortened the synthesis of byrostatin 16, one of a family of natural products that show promising activity against cancer but can't easily be extracted from nature or made artificially.  |
Chemistry World May 2010 Paul Docherty |
Column: Totally Synthetic In the case of englerin A, the synthetic strategies used by Dawei Ma's group at the Chinese Academy of Sciences, Shanghai, China, 1 and Antonio Echavarren's team at Rovira and Virgili University, Tarragona, Spain, 2 are extremely similar.  |
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 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 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 June 2008 Paul Docherty |
Column: Totally Synthetic Harvard University's David Evans is renowned for his prowess with an aldol reaction, and he has used the endlessly flexible transformation to make a diverse range of natural products.  |
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 October 1, 2014 Karl Collins |
Twisting activity from amides When I think of asymmetric aldol reactions, what immediately springs to mind is using boron to control enolate geometry and chiral auxiliaries to impart facial selectivity in the addition step.  |
Chemistry World February 21, 2008 Lewis Brindley |
Esters Made Easy with Indium Indium is the basis of a novel catalyst designed to make useful cyclic esters. This catalyst could greatly simplify the production of chiral dihydropyranones, important structural elements in many natural products and pharmaceuticals.  |
Chemistry World August 2008 Paul Docherty |
Column: Totally Synthetic Impersonating nature isn't easy, and biomimetic syntheses are remarkable in two senses.  |
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 August 2007 Derek Lowe |
Opinion: In the Pipeline Process chemists just don't get the credit they deserve.  |
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 September 4, 2008 Fred Campbell |
Two catalysts better than one US researchers have cracked a long standing problem in chemical synthesis - the catalytic alpha-alkylation of aldehydes - by combining two catalysts in one pot.  |
Chemistry World July 2009 Paul Docherty |
Column: Totally Synthetic When it comes to making large natural products, different researchers will often propose identical 'end-game' strategies to complete the target.  |
Chemistry World November 17, 2008 Simon Hadlington |
Catalyst flexes for extra control US chemists have developed a new type of catalyst capable of exerting high stereochemical control over olefin metathesis reactions  |
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 February 2009 Paul Docherty |
Column: Totally Synthetic The farming squeeze has renewed interest in compounds with anti-insect abilities, especially those known for their activity against specific pests.  |
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 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 October 2009 |
Column: In the pipeline Derek Lowe discusses the problem of leaning too heavily on favorite 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 April 2011 Paul Docherty |
Column: Totally Synthetic Reactions in the synthesis of guanacastepene N. Discovered in fungi growing on trees in the Guanacaste conservation area in Costa Rica, several syntheses of this family have appeared in the decade since their isolation.  |
Chemistry World March 2009 Paul Docherty |
Column: Totally Synthetic Marine waters have produced some of the biggest celebrities of the natural product world - including the brevitoxins, saxitoxins and tetrodotoxins, 1 famous as much for the sheer human effort needed for their landmark syntheses as for their complexity and size.  |
Chemistry World November 2009 Paul Docherty |
Column: Totally Synthetic The hunt for anticancer therapies is inextricably linked with natural products (such as taxol), and more specifically with macrolides.  |
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 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 February 27, 2012 Phillip Broadwith |
Bending carbonyl reactivity rules Belgian chemists have uncovered a method to bypass the standard reactivity hierarchy of carbonyl compounds, allowing a ketone or ester to be reduced in the presence of a more reactive aldehyde.  |
Chemistry World February 4, 2011 Elinor Richards |
Strychnine in just six steps Strychnine, best known as a poison but also used medicinally as a stimulant, can now be synthesised in just six steps, say US scientists.  |
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 April 10, 2008 Mark Peplow |
'Pot-in-a-Pot' Technique Makes Impossible Cascade Reactions Easy A simple technique that nests a series of reaction vessels could help chemists avoid the tedium and expense of purifying organic compounds after each step of a long synthesis.  |
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 April 28, 2011 Simon Hadlington |
New method for aromatic coupling Chemists in Switzerland have developed a way to couple aromatic rings through the Friedel-Crafts mechanism - something many people would have believed impossible.  |
Chemistry World December 2010 Paul Docherty |
Column: Totally Synthetic In a conversation at the beginning of this year, a friend and I considered the most challenging targets available to the total-synthesizer - and maoecrystal V was at the top of the list.  |
Chemistry World December 2011 Paul Docherty |
Column: Totally Synthetic An important subclass of marine neurotoxins contains spirocyclic imines. Larger examples such as the pinnatoxins have tended to hog the limelight, but the increasingly prolific Daniel Romo has focused his sights on gymnodimine - a slightly smaller family member.  |
Chemistry World May 29, 2015 Derek Lowe |
Magic molecule modifiers The synthesis of a new organic molecule can be approached in several ways.  |
Chemistry World July 27, 2015 |
(--)-Jiadifenolide I believe that Ryan Shenvi's could well be the last synthesis we see of the popular neurotrophic agent jiadifenolide, at least for some time.  |
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.  |