Synthetische Analoge des Hypertensins. III. Gly¹, II, Val⁵‐Hypertensin II, Orn², Val⁵‐Hypertensin II, Phe⁴, Val⁵‐Hypertensin II, und Derivate

The syntheses of the five hypertensin analogues, H · Gly‐Arg‐Val‐Tyr‐Val‐His‐Pro‐Phe · OH (II), H · Asp(R)‐Orn‐Val‐Tyr‐Val‐His‐Pro‐Phe · OH (II, R  −OH; IIIa, R  −NH 2 ), and H · Asp(R)‐Arg‐Val‐Phe‐Val‐His‐Pro‐Phe · OH (IV, R  −OH; IVa, R  −NH 2 ), are described in detail (schemes 1, 2 and 3).