semisynthetic


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semisynthetic

 [sem″e-sin-thet´ik]
produced by chemical manipulation of naturally occurring substances.

sem·i·syn·thet·ic

(sem'ē-sin-thet'ik),
Describing the process of synthesizing a particular chemical using a naturally occurring chemical as a starting material, thus obviating part of a total synthesis, for example, the conversion of cholesterol (obtained from a natural source) into a corticosteroid.

semisynthetic

/semi·syn·thet·ic/ (-sin-thet´ik) produced by chemical manipulation of naturally occurring substances.

semisynthetic

(sĕm′ē-sĭn-thĕt′ĭk, sĕm′ī-)
adj.
1. Prepared by chemical synthesis from natural materials: a semisynthetic antibiotic.
2. Consisting of a mixture of natural and synthetic substances: a semisynthetic culture medium.

semisynthetic

[-sinthet′ik]
Etymology: L, semi, half; Gk, synthesis, putting together
pertaining to a natural substance that has been partially altered by chemical manipulation.

sem·i·syn·thet·ic

(sem'ē-sin-thet'ik)
Describing the process of synthesizing a particular chemical using a naturally occurring chemical as a starting material, thus obviating part of a total synthesis.

sem·i·syn·thet·ic

(sem'ē-sin-thet'ik)
Describing process of synthesizing a particular chemical using a naturally occurring chemical as a starting material, thus obviating part of a total synthesis, e.g., conversion of cholesterol into a corticosteroid.

semisynthetic

produced by chemical manipulation of naturally occurring substances.
References in periodicals archive ?
natural and semisynthetic opioids) declined slightly in 2012 and remained steady in 2013, showing some signs of progress.
This similarity is not surprising, as the ketolides are novel semisynthetic erythromycin-A derivatives structurally similar to clarithromycin.
In order to explore the possibility of improving the antiprotozoal activity of 1, a number of simple semisynthetic derivatives were prepared and/ or evaluated; these derivatives included betulinic acid acetate (2), betulonic acid (3), betulinic acid methyl esther (4) and betulin (5) (Fig.
Minor cellulitis may be empirically treated with a semisynthetic penicillin or a first- or second-generation oral cephalosporin unless resistant infections are common in the community.
Methods: HiFIDE extencls existing semisynthetic injection methods by replacing geometrically shaped injects with injects derived from surveillance data collected during real outbreaks.
Product launches in the branded sector include Riomet, the only liquid form of metformin (the most prescribed oral treatment for type 2 diabetes); DisperMox, the only amoxicillin in a disposable tablet and 600-mg dosage (considered the first choice for otitis media); and Panixine, a semisynthetic cephalosporin antibiotic that has numerous indications (including treatment of skin structure infections caused by susceptible strains of microorganisms).
CANCUN, MEXICO -- Daptomycin is as effective as vancomycin or a semisynthetic penicillin in the treatment of patients coinfected with Staphylococcus aureus and [beta]-hemolytic streptococci, according to findings presented at the 11th International Congress on Infectious Diseases.
Structure-activity relationships among the semisynthetic antibiotics.
Also, the so-called synthetic and semisynthetic metalworking fluids are mainly water.
Artificial blood has circulated for years in the veins of science fiction's semisynthetic characters.
based nonprofit pharmaceutical company, together with synthetic biology innovator Amyris Biotechnologies, and leading pharmaceutical company sanofi-aventis, today announced they have entered into an agreement for the development of semisynthetic artemisinin, a key ingredient in first-line malaria treatments.