| http://www.w3.org/ns/prov#value | - Cyclocondensation of D-amino acids of Formula (8) with tetrahydrofarans of Formula (7) and subsequent coupling is shown below in Reaction Scheme V: [0190] Step 1 - Preparation of Compounds of Formula (9) [0191] Amino acids of Formula (8) and 2,5-dimethoxytetrahydrofurans of Formula (7) are dissolved or suspended in solution in an inert organic solvent, for example 1,2-dichloroethane, with chlorotr
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