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N-{N-[N-(1,1-Dimethyl-ethoxy-carbon-yl)-l-leuc-yl]-N-methyl-l-leuc-yl}-N-methyl-l-leucine benzyl ester.

ABSTRACT: The tripeptide title compound, C(32)H(53)N(3)O(6), synthesized in 80% yield by coupling of N-methyl-l-leucine benzyl ester with tert-butoxy-carbonyl-l-leucyl-N-methyl-l-leucine at 273?K, conjugates through two amide linkages and includes two protecting groups: a tert-butyl-oxycarbonyl group at the C-tip and a benzyl group at the N-tip. A classical inter-molecular N-H?O hydrogen bond and a weak non-conventional inter-molecular C-H?O contact connect the mol-ecules, forming layers parallel to (001).

SUBMITTER: Xu WJ 

PROVIDER: S-EPMC2959758 | biostudies-literature | 2008 Oct

REPOSITORIES: biostudies-literature

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N-{N-[N-(1,1-Dimethyl-ethoxy-carbon-yl)-l-leuc-yl]-N-methyl-l-leuc-yl}-N-methyl-l-leucine benzyl ester.

Xu Wen Jie WJ   Liao Xiao Jian XJ   Diao Jian Zhong JZ   Zhou Lei L   Xu Shi Hai SH  

Acta crystallographica. Section E, Structure reports online 20081025 Pt 11

The tripeptide title compound, C(32)H(53)N(3)O(6), synthesized in 80% yield by coupling of N-methyl-l-leucine benzyl ester with tert-butoxy-carbonyl-l-leucyl-N-methyl-l-leucine at 273 K, conjugates through two amide linkages and includes two protecting groups: a tert-butyl-oxycarbonyl group at the C-tip and a benzyl group at the N-tip. A classical inter-molecular N-H⋯O hydrogen bond and a weak non-conventional inter-molecular C-H⋯O contact connect the mol-ecules, forming layers parallel to (001)  ...[more]

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