Boc-D-Cys(Bzl)-ol
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Boc-D-Cys(Bzl)-ol

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Category
Amino Alcohol
Catalog number
BAT-000604
CAS number
198470-16-5
Molecular Formula
C15H23NO3S
Molecular Weight
297.4
Boc-D-Cys(Bzl)-ol
IUPAC Name
tert-butyl N-[(2S)-1-benzylsulfanyl-3-hydroxypropan-2-yl]carbamate
Synonyms
Boc-S-Benzyl-D-Cysteinol
Storage
Store at 2-8 °C
InChI
InChI=1S/C15H23NO3S/c1-15(2,3)19-14(18)16-13(9-17)11-20-10-12-7-5-4-6-8-12/h4-8,13,17H,9-11H2,1-3H3,(H,16,18)/t13-/m0/s1
InChI Key
MEZQRZMTIJTPIY-ZDUSSCGKSA-N
Canonical SMILES
CC(C)(C)OC(=O)NC(CO)CSCC1=CC=CC=C1
2. Toluene and ethylbenzene aliphatic C-H bond oxidations initiated by a dicopper(II)-mu-1,2-peroxo complex
Heather R Lucas, Lei Li, Amy A Narducci Sarjeant, Michael A Vance, Edward I Solomon, Kenneth D Karlin J Am Chem Soc. 2009 Mar 11;131(9):3230-45. doi: 10.1021/ja807081d.
With an anisole-containing polypyridylamine potential tetradentate ligand (O)L, a mu-1,2-peroxo-dicopper(II) complex [{(O)LCu(II)}(2)(O(2)(2-))](2+) forms from the reaction of the mononuclear compound [Cu(I)((O)L)(MeCN)]B(C(6)F(5))(4) ((O)LCu(I)) with O(2) in noncoordinating solvents at -80 degrees C. Thermal decay of this peroxo complex in the presence of toluene or ethylbenzene leads to rarely seen C-H activation chemistry; benzaldehyde and acetophenone/1-phenylethanol mixtures, respectively, are formed. Experiments with (18)O(2) confirm that the oxygen source in the products is molecular O(2) and deuterium labeling experiments indicate k(H)/k(D) = 7.5 +/- 1 for the toluene oxygenation. The O(2)-reaction of [Cu(I)((Bz)L)(CH(3)CN)](+) ((Bz)LCu(I)) leads to a dicopper(III)-bis-mu-oxo species [{(Bz)LCu(III)}(2)(mu-O(2-))(2)](2+) at -80 degrees C, and from such solutions, very similar toluene oxygenation chemistry occurs. Ligand (Bz)L is a tridentate chelate, possessing the same moiety found in (O)L, but without the anisole O-atom donor. In these contexts, the nature of the oxidant species in or derived from [{(O)LCu(II)}(2)(O(2)(2-))](2+) is discussed and likely mechanisms of reaction initiated by toluene H-atom abstraction chemistry are detailed. To confirm the structural formulations of the dioxygen-adducts, UV-vis and resonance Raman spectroscopic studies have been carried out and these results are reported and compared to previously described systems including [{Cu(II)((Py)L)}(2)(O(2))](2+) ((Py)L = TMPA = tris(2-methylpyridyl)amine). Using (L)Cu(I), CO-binding properties (i.e., nu(C-O) values) along with electrochemical property comparisons, the relative donor abilities of (O)L, (Bz)L, and (Py)L are assessed.
3. A water-soluble, stable dipeptide NK1 receptor-selective neurokinin receptor antagonist with potent in vivo pharmacological effects: S18523
J Bonnet, N Kucharczyk, P Robineau, M Lonchampt, C Dacquet, D Regoli, J L Fauchère, E Canet Eur J Pharmacol. 1996 Aug 22;310(1):37-46. doi: 10.1016/0014-2999(96)00362-7.
The potassium salt of a chemically stabilized dipeptide, {1-[4-(1 H-tetrazol-5-yl)butyl]indol-3-yl}carbonyl-Hyp-Nal-N(methyl)-Bzl , (Hyp = (R)-4-hydroxy-L-proline; Nal = 3-L-(beta-naphthyl)-alanine), S18523, is described as a new water-soluble, potent and selective NK1 receptor antagonist. The low molecular weight antagonist (M(r) = 736) displays nanomolar potency (pA2 = 9.6) in the rabbit vena cava (NK1) bioassay and nanomolar affinity (pKi = 9.1) on the human NK1 receptor expressed by lymphoblastoma cells. It is devoid of mu-opiate affinity (Ki > 10(-4) M with respect to tritiated Tyr-DAla-Gly-MePhe-Gly-ol), has negligible calcium-channel affinity (estimated Ki = 2.6 x 10(-5) M, with respect to isradipine) and does not cause peritoneal mast-cell degranulation. S18523 has strong antinociceptive effects in three classical pain tests in vivo both by i.v. and p.o. routes. The dipeptide potently antagonizes bronchoconstriction provoked by exogenous substance P in the guinea-pig and acts longer than the non-peptide antagonist CP99994, when administered as aerosol. Finally, S18523 displays antiinflammatory properties, since it dose-dependently inhibits substance P-induced plasma extravasation both in the bladder (ID50 = 0.18 mg/kg i.v.) and bronchi (ID50 = 0.14 mg/kg i.v.) of the guinea-pig.
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