NATURAL PRODUCTS Newfound antibiotic is gargantuan and

Mar 16, 2015 - Gerwick praises UCSD team member Jung-Rae Rho's NMR prowess. The researchers found that gargantulide A kills pathogenic bacteria such ...
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NEWS OF THE WEEK

PHARMA FIRMS MAKE STAFF CUTS EMPLOYMENT: After buying small

biotech businesses, big pharma decides to close operations

A

KRIS TRIPPLAAR/SIPA USA/NEWSCOM

Amgen will close this Onyx site in South San Francisco.

MID A SLEW OF ONGOING pharma company

restructurings, moves made by a few firms suggest that what they really want are the products, not all the employees, at the small companies they recently acquired. Only two months after spending $9.5 billion to buy Cubist Pharmaceuticals, Merck & Co. will close Cubist’s drug discovery unit in Lexington, Mass., and eliminate about 120 jobs beginning in May. With the acquisition, Merck got a handful of antibiotic products, including Cubicin, which had 2014 sales of just over $1 billion, and the more recently approved Zerbaxa. Merck will transfer promising Cubist discov-

ery projects to other Merck sites and continue to develop later-stage Cubist candidates. Merck is said to be evaluating its overall operations in the Boston area. Thinking about antibiotics along similar lines, AstraZeneca decided last month to spin off its Bostonarea anti-infectives R&D unit, while keeping marketed and late-stage products. The move leaves about 95 employees with an uncertain future. On the other side of the continent, Californiabased Amgen is consolidating its oncology operations after an acquisition. By year-end, it will reduce the workforce at Onyx Pharmaceuticals, which it acquired for $10 billion in 2013, by about 300 people in home and remote offices. Onyx’s cancer drug Kyprolis, launched in 2012, is among Amgen’s fastest-growing products. Amgen was already planning to cut as much as 20% of its workforce this year and close two R&D facilities in Washington and two production sites in Colorado. Now it will shut the Onyx site in South San Francisco as well. Commercial and development operations will be consolidated at Amgen’s Thousand Oaks headquarters, and some Onyx R&D jobs will move to Amgen’s South San Francisco facility, which the company intends to expand. Meanwhile, Ireland’s Shire is looking to save $25 million per year by concentrating U.S. operations in Lexington, Mass. It recently filed paperwork with Pennsylvania authorities indicating that it would eliminate 600 jobs in Chesterbrook, Pa., beginning in April. It is not certain how many jobs will be transferred to other Shire sites. Shire has also just acquired the U.S.-based rare disease firms NPS Pharmaceuticals and Meritage Pharma.—ANN THAYER

NATURAL PRODUCTS Newfound antibiotic is gargantuan and unfortunately deadly Gargantulide A is a big, utterly complex, More challenging was the team’s efare chiral centers. Gerwick praises UCSD and fantastic molecule to gaze upon. fort to elucidate the structure of garganteam member Jung-Rae Rho’s NMR But the polyketide natural product with tulide A, which required implementing prowess. promising antibiotic properties is so nearly every conceivable NMR spectrosThe researchers found that gargandeadly toxic it will have to be shelved copy analysis method. The molecule tulide A kills pathogenic bacteria such (Org. Lett. 2015, DOI: 10.1021/acs. features a 52-membered macrolactone as MRSA and Clostridium difficile. But orglett.5b00068). ring and overall contains 105 carinjecting mice with the compound led OH An international research bon atoms, of which nearly half to a quick death for the animals. The HO OH team led by William H. Gersevere toxicity has precluded HO wick of the University of Caliany further development O OH OH OH OH OH OH OH OH OH O fornia, San Diego, and Mark S. of the compound as an Butler, formerly of MerLion antibiotic. Pharmaceuticals, in Gargantulide A is “a OH HO O Singapore, found garpretty amazing molecule,” HO O O OH OH OH OH gantulide A in a highGerwick says. “Nature O throughput screen of still has some surprises HN O O OH the biochemical efflufor us in terms of novel OH O CH3 OH OH HO ent of a Streptomyces structures with powerful OH NH2 bacterium. That was the biological properties.”— HO OH OH easy part. STEVE RITTER

CEN.ACS.ORG

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MARCH 16, 2015