Synopsys database

A number of approaches are available or under development to predict metabolism, including expert systems such as MetabolExpert (Compudrug), Meteor (Lhasa), MetaFore [42] and the databases Metabolite (MDL) and Metabolism (Synopsys) [43]. Ultimately such programs may be linked to computer-aided toxicity prediction based on quantitative structure-toxicity relationships and expert systems for toxicity evaluation such as DEREK (Lhasa) (see also Chapter 8) [44]. 

More than 200 structures from X-ray diffraction studies of acyclic organic peroxides have been disclosed in the literature since 1983. Structural information prior to 1983 was reviewed in an earlier book chapter and therefore has been omitted from this synopsis. Emphasis has been laid on a documentation of the most important structural information. The survey, however, remained incomplete since a considerable number of structures had been disclosed in the literature and/or the CSD database without providing the associated atomic coordinates. Further, structures with unusually short or long 0—0 connectivities have been omitted from the statistics for the reasons outlined in Section II. 

Several databases of published biotransformations are commercially available, such as Molecular Design Ltd s Metabolite and the Accelerys Metabolism Database (formerly produced by Synopsis). The former is quite extensive, and contains in vivo and in vitro biotransformation summaries from the literature, while the latter has as its core information based on the U.K. Royal Society of Chemistry s Biotransformations series (Hawkins, 1988-1996) supplemented by additional data from the literature. Both systems are searchable by reaction type. The intelligent use of such databases provides much valuable information on likely metabolic profile. 

Allen NC, Bagade S, McQueen MB, Ioannidis JPA, Kawoura FK, et al. 2008. Systematic meta-analyses and field synopsis of genetic association studies in schizophrenia The szgene database. Nat Genet 40 827-834. 

Profile The company provides scientific information products and services to the fine-chemical, pharmaceutical, agrochemical, biotechnology, and academic research communities. Synopsys operates worldwide, with offices and distributors in Europe, the United States, and Japan. It specializes in chemical reaction databases that deliver added-value information and refined data. 

The purpose of this section is to provide a qualitative synopsis of health effects in wildlife to address the potential concern that effects observed in wildlife that are attributable to PCB exposure may also occur in humans, and to highlight information in the wildlife database that contributes to the weight of evidence supporting the critical effects that form the basis for the chronic- and intermediate-duration oral MRLs. 

The following list of combinatorial synthesis schemes (Figure 4) is a collection of examples which fulfil the criteria of broad applicability. More comprehensive compilations have been published in specific reviews [3,4]. For subscribers, electronic databases such as SPORE (Molecular Design, Ltd., San Leandro, CA) or SPS (Synopsys Scientific Systems, Ltd., Leeds, U.K.) are excellent vehicles with which to keep up to date on the latest developments in solid-phase synthesis and carry out structure searches. 

Synopsys Scientific Accord, databases including Bioster Force field calculations... 

BC accepts both VHDLand Verilog. The behavioral HDL description is converted to an intermediate database, the Synopsys db format. In effect, an HDL written at higher level of abstraction is converted to multiple RTL implementations using behavioral synthesis. All the information about constraints and multi-cycle operations are... 

Many producers and public hosts offer reduced rates for academics or full academic programs , making expensive retrieval systems and databases affordable for academic institutions (e.g., MDL, retrieval system ISIS plus several databases Beilstein Information Systems, CrossFire FIZ Chemie, reduced rates for both Cheminform RX in house and at the host STN Springer/Infochem Synopsys). However, CASREACT is unfortunately not included at this time in the otherwise very useful CAS academic program. ... 

While for a long time the in-house reaction-retrieval system market was dominated by REACCS and ISIS, with almost every reaction database being available in the REACCS/ISIS format, there are now a number of competitors. Some of the Synopsys reaction databases can be run on Synopsys Accord, a structure- and reaction-handling add-on for Microsoft Access and Excel. Chem-X, a modular software system from Chemical Design Ltd. includes (since April 1993) the reaction... 

The situation is not nearly as favorable for exporting results. Accord by Synopsys, the new Beilstein CrossFire for Excel clients, and particularly ISIS, are much more flexible than others, enabling the user to extract almost any desired structure or data into a spreadsheet of her or his definition for postprocessing of results. One step further, condensing a number of similar structures into a common structure plus R groups, is already realized in ISIS structure-activity relationship (SAR) tables and Accord. Such a feature would be particularly useful for the large databases as they are the most in need of such tools, but they lack them at present. Apart from the standard display of reactions, the public database CASREACT (and STN Cheminform RX) permit only role-specific extraction with STN s powerful SmartSelect of compounds from reactions to collect, for example, reagents or solvents from a set of reactions. 

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