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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 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 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 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 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 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 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 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 August 2008 Paul Docherty	Column: Totally Synthetic Impersonating nature isn't easy, and biomimetic syntheses are remarkable in two senses.
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 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 November 2008 Paul Docherty	Column: Totally Synthetic Vannusal B -- This is a classic case of misassigned identity - the structure published by the researchers who first isolated the compound from its natural source has been recreated via total synthesis, and found wanting.
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 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 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 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 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 June 2009 Paul Docherty	Column: Totally Synthetic With potent bacteria-beating activity, it's no surprise that kendomycin has recently grabbed quite a bit of attention.
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 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 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 June 27, 2013 Paul Docherty	Bolivianine The still-growing and insanely diverse class of terpene natural products is probably responsible for a considerable number of undergraduate headaches.
Chemistry World June 25, 2008 Lewis Brindley	Slick synthesis to sea sponge structure Chemists in the US have devised a new route to (-)-cyanthiwigin F, a complex biomolecule active against tumors
Chemistry World September 2, 2013 Paul Docherty	Steviol A discussion is presented on new ways to synthesize the diterpenoid steviol.
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 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 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 January 2011 Paul Docherty	Column: Totally Synthetic Although the story is incomplete, the target is a worthy challenge - leiodolides A and B have powerful activity and selectivity against NI60 tumour cells, and may lead to therapeutic agents.
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 December 2008 Paul Docherty	Column: Totally Synthetic Pseudolaric acid B: regular readers of this column's online incarnation will have noticed that this is the second appearance for this particular synthesis.
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 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 2012 Paul Docherty	Column: Totally Synthetic Hopeanol and hopeahainol A
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 August 29, 2012 Paul Docherty	Amphidinolide F We're plunging into the marine depths to find natural products with prodigious biological activity. The amphidinolide family comprises over 30 members, varying in architecture but (almost) all featuring a complex and highly decorated macrolactone ring at 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 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 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 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 August 2009 Paul Docherty	Column: Totally Synthetic Richmond Sarpong's research group at University of California, Berkeley, US, have taken quite an interest in lyconadin A, publishing an initial, racemic synthesis.
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 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 July 2011 Paul Docherty	Column: Totally Synthetic At first glance rippertenol looks a mere hop-skip-and-jump from its parent. However, a more careful examination reveals a stray methyl group at C1, complicating the synthesis of an already tricky target.
Chemistry World July 2008 Paul Docherty	Column: Totally Synthetic The target is hypocrellin A, which couldn't look much less like last month's callipeltoside A. Even a casual glance reveals one intriguing feature of this target - the fact it exists in equilibrium with an isomer.
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 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 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 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 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 September 2008 Paul Docherty	Column: Totally Synthetic The need to discover new antibiotics to treat resistant strains of bacteria is a well- documented and discussed challenge for chemists.