Page 1. SYNTHETIC COMMUNICATIONS, 20(22), 3507-3517 (1990) SYNTHESIS OF N-(TERT-BUTOXYCARBONVL)-3-(4-THIAZOLVL~L-ALANINE Chi-Nung Hsiao', M. Robert Leanna, Lakshmi Bhagavatula, Edwin De Laral, Thomas M. Zydowskyl , Bruce W. Horrom and Howard E. Morton Abbotl Laboratories. Dept. 45L I AP10, Process Chemistry Pharmaceutical Products Research Division Abbott Park, Illinois 60064 ... Page 10. HSIAO ET AL. 3516 ...