Structures Graphics Software

The On-line Structure Input System (OLSIS) ( ) is the graphics software CAS developed for producing structures in CA. It was developed over 15 years ago, and many modifications and Improvements have been made since its origination. Initially,... 

STN International off-line prints are produced on a Xerox 9700 laser printer at 300 dots per inch resolution. More than five years ago, when CAS ONLINE (the predecessor of STN International) began, graphics software capable of producing chemical structures on laser printers did not exist. For that reason, CAS developed a highly effective program to draw chemical structures by a complicated overlay of mosaic characters. CAS designed specific... 

CAS will develop workstation software to build the Markush structures for a new Patent Service. The graphics software for building chemical structures could, ideally, also be used to build structure queries for STN International, connection tables for registration, and an image that is the appropriate quality for ACS publications ... 

Examination of the X-ray structure of pristinamycin using a computer-graphics software [37] package showed a transannular hydrogen bond (O - - - H = 1.9 A) between the amide carbonyl of the proline residue (3-CO) and the amide NH of the phenylglycine residue (6-NH) which determines the tertiary structure of the macrocycle (Fig. 3). 

---