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ChemOffice.Com - CambridgeSoft

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Administrator<br />

To use the Search Options:<br />

1. Click the Search Options tab.<br />

The Search Options window appears.<br />

If you want to...<br />

require that any reaction<br />

center present in the query<br />

overlap with reaction<br />

centers in the target. This<br />

preference applies only to<br />

reaction searching,<br />

then click:<br />

Hit must overlap<br />

reaction center.<br />

allow hits to contain<br />

molecular fragments in<br />

addition to that which was<br />

hit by the query,<br />

Extra fragments<br />

may be present in<br />

hit.<br />

2. Take the appropriate action:<br />

If you want to...<br />

require that the tetrahedral<br />

stereochemistry of the<br />

target structure match that<br />

of the query structure,<br />

require that the double<br />

bond stereochemistry of<br />

the target structure match<br />

that of the query structure,<br />

then click:<br />

Match tetrahedral<br />

stereo.<br />

Match double<br />

bond stereo.<br />

allow uncharged carbon<br />

atoms in the query to<br />

match charged carbon<br />

atoms in the target,<br />

NOTE: Charged atoms in the<br />

query must always match charged<br />

atoms in the target, regardless of<br />

this setting.<br />

allow uncharged atoms in<br />

the query to match<br />

charged atoms in the<br />

target,<br />

NOTE: Charged atoms in the<br />

query must always match charged<br />

atoms in the target, regardless of<br />

this setting.<br />

Match any charge<br />

on carbon.<br />

Match any charge<br />

on heteroatom.<br />

allow fragments in the<br />

query to overlap (share<br />

one or more atoms) in the<br />

target,<br />

Fragments may<br />

overlap.<br />

allow a query drawn as<br />

absolute (hash/wedge<br />

bonds) to hit a target<br />

stored as relative.<br />

Absolute center<br />

hits relative<br />

380•ChemFinder/Office<br />

<strong>CambridgeSoft</strong><br />

Refining Your Search

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