𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Synthesis of Diketopiperazines Containing Prolinyl Unit — Cyclo(L-prolinyl-L-leucine), Cyclo(L-prolinyl-L-isoleucine) and Cyclo(L-tryptophyl-L-proline).

✍ Scribed by S. Jhaumeer-Laulloo; A. Khodabocus; A. Jugoo; D. Jheengut; S. Sobha


Publisher
John Wiley and Sons
Year
2004
Weight
78 KB
Volume
35
Category
Article
ISSN
0931-7597

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📜 SIMILAR VOLUMES


Synthesis and carbon-13 nuclear magnetic
✍ Mary M. Exner; Robert J. Kostelnik 📂 Article 📅 1977 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 493 KB 👁 2 views

## Abstract __Cyclo__(D‐Leu‐L‐Leu) and __cyclo__(L‐Leu‐L‐Leu) were synthesized, and their carbon‐13 nmr spectra at 65 MHz were examined in dimethylsulfoxide and trifluoroacetic acid solutions. The chemical shift data are consistent with a boat or “twisted” boat conformation of the diketopiperazine

Crystal structures of diketopiperazines
✍ K. Suguna; S. Ramakumar; N. Shamala; B. V. Venkataram Prasad; P. Balaram 📂 Article 📅 1982 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 340 KB

## Abstract The crystal and molecular structures of two α‐aminoisobutyric acid (Aib)‐containing diketopiperazines, cyclo(Aib‐Aib) 1 and cyclo(Aib‐L‐Ile) **2**, are reported. Cyclo(Aib‐Aib) crystallizes in the space group P1 with __a__ = 5.649(3), __b__ = 5.865(2), __c__ = 8.363(1), α = 69.89(6), β

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✍ Katsuhiko Ueno; Toshimi Shimizu 📂 Article 📅 1983 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 419 KB 👁 1 views

## Abstract The crystal structure and conformation of the synthetic cyclic tetrapeptide, __cyclo__(L‐Pro‐Sar)~2~, was determined by x‐ray analysis. The peptide crystallizes in the orthorhombic space group __P__2~1~2~1~2~1~ with cell parameters __a__ = 9.277(1), __b__ = 12.884(1), and __c__ = 15.581