Boc-D-Leu-OH
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Boc-D-Leu-OH

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Category
BOC-Amino Acids
Catalog number
BAT-015015
CAS number
16937-99-8
Molecular Formula
C11H21NO4
Molecular Weight
231.29
Boc-D-Leu-OH
IUPAC Name
(2R)-4-methyl-2-[(2-methylpropan-2-yl)oxycarbonylamino]pentanoic acid
Synonyms
N-Boc-D-leucine; N-[(1,1-Dimethylethoxy)carbonyl]-D-leucine; N-Carboxy-D-leucine N-tert-Butyl Ester; (R)-2-(tert-Butoxycarbonylamino)-4-methylpentanoic Acid; N-(tert-Butoxycarbonyl)-D-leucine; N-{[(2-Methyl-2-propanyl)oxy]carbonyl}-D-leucine
Related CAS
200937-17-3 (monohydrate)
Appearance
White Solid
Purity
≥95%
Density
1.061±0.06 g/cm3 (Predicted)
Melting Point
85-87°C
Boiling Point
356.0±25.0°C (Predicted)
Storage
Store at 2-8°C under inert atmosphere
Solubility
Soluble in Acetic Acid (Sparingly), DMSO (Slightly), Methanol (Slightly)
InChI
InChI=1S/C11H21NO4/c1-7(2)6-8(9(13)14)12-10(15)16-11(3,4)5/h7-8H,6H2,1-5H3,(H,12,15)(H,13,14)/t8-/m1/s1
InChI Key
MDXGYYOJGPFFJL-MRVPVSSYSA-N
Canonical SMILES
CC(C)CC(C(=O)O)NC(=O)OC(C)(C)C
1.Effects of thioamide substitution for the enkephalin conformation. Crystal structure of Boc-Tyr-Gly-Gly-Phe psi [CSNH]Leu-OBzl.
Doi M1, Takehara S, Ishida T, Inoue M. Int J Pept Protein Res. 1989 Nov;34(5):369-73.
The crystals of Boc-Tyr-Gly-Gly-Phe psi[CSNH]Leu-OBzl monohydrate (C40H51N5O8S.H2O), a monothionated Leu-enkephalin analogue, were obtained with space group P2(1), a = 12.616(3), b = 9.347(2), c = 18.548(5) A, beta = 96.31(4) degrees. The structure was elucidated by X-ray diffraction analysis, and refined to the R value of 0.091 for the observed 3294 reflections. Two antiparallel molecules related by a pseudo twofold symmetry were stabilized to each other by four intermolecular hydrogen bonds. The molecular conformation was bent at the Phe residue, and the extended moiety of the Tyr-Gly-Gly fragment was almost perpendicular to that of the Phe-Leu residues. Consequently the molecule, as a whole, formed an L-shape conformation with a slightly left-handed helicity.
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