Software question



 Hi All:
 Do you know of any software which can help in designing molecules with a set
 of prescribed properties?  For example, if I set the conditions that the MW
 be a certain value, and that the structure must contain certain functional
 groups, and that it must be limited to certain atoms, for example C, H, and
 O, is there any software which can show me all reasonable combinations?
 --
 :Joe
  jtgolab $#at#$ amoco.com
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