View all references ] During the course of an effort directed toward the preparation and biological testing of a series of cyclopropyl β-amino acids 3, we relied on the use of cyanoester intermediates 2. [ 2 2. Schwarz , JB ; Gibbons , SE ; Graham , SR ; Colbry , NL ; Guzzo , PR ; Le , V.-D. ; Vartanian , MG ; Kinsora , JJ ; Lotarski , SM ; Li , Z. ; Dickerson , MR ; Su , T.-Z. ; Weber , ML ; El-Kattan , A. ; Thorpe , AJ ; Donevan , SD ; Taylor , CP ; Wustrow , DJ Novel cyclopropyl β-amino ...