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Natural product synthesis, ring structures moiety

As described previously, thiazohnes are versatile intermediates to thiazoles. In addition, thiazoline rings are structural motifs found in numerous natural products. Among a variety of methods for the construction of thiazolines, the cyclodehydration protocol is perhaps most popular. In the total synthesis of cyclopeptide YM-216391, (diethylamino)sulfur trifluoride (DAST) is used as the cyclodehydrating agent for the conversion of P-hydroxy thioamide 76 to thiazoline 13 <05CC797>. A similar strategy has been used in the construction of the thiazoline moiety in two independent total syntheses of hahpeptin A (77 to 78 79 to 80)... [Pg.252]

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Natural product synthesis moiety

Natural product synthesis, ring structures

Natural products, synthesis

Natural structures

Product structure

Production structure

Ring products

Ring structure synthesis

Ring structures

Structural moiety

Structure natural products

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