H-Serinol(Bzl)
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H-Serinol(Bzl)

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A reagent used in the synthesis of β-amino alcohols, which are biological compounds for medical use.

Category
Amino Alcohol
Catalog number
BAT-000647
CAS number
58577-87-0
Molecular Formula
C10H15NO2
Molecular Weight
181.23
H-Serinol(Bzl)
IUPAC Name
(2R)-2-amino-3-phenylmethoxypropan-1-ol
Synonyms
(R)-2-Amino-3-(benzyloxy)propan-1-ol; O-benzyl-L-serinol
Purity
≥ 98% (HPLC)
Density
1.11g/cm3
Melting Point
34-37 °C (lit.)
Boiling Point
307 °C (lit.)
Storage
Store at 2-8 °C
InChI
InChI=1S/C10H15NO2/c11-10(6-12)8-13-7-9-4-2-1-3-5-9/h1-5,10,12H,6-8,11H2/t10-/m1/s1
InChI Key
ZJUOMDNENVWMPL-SNVBAGLBSA-N
Canonical SMILES
C1=CC=C(C=C1)COCC(CO)N
2. Romosozumab and antiresorptive treatment: the importance of treatment sequence
Felicia Cosman, et al. Osteoporos Int. 2022 Jun;33(6):1243-1256. doi: 10.1007/s00198-021-06174-0. Epub 2022 Feb 15.
To evaluate whether treatment sequence affects romosozumab response, this analysis reviewed studies where romosozumab was administered before or following an antiresorptive (alendronate or denosumab). Initial treatment with romosozumab followed by an antiresorptive resulted in larger increases in bone mineral density of both hip and spine compared with the reverse sequence. Introduction: Teriparatide followed by an antiresorptive increases bone mineral density (BMD) more than using an antiresorptive first. To evaluate whether treatment sequence affects romosozumab response, we reviewed randomized clinical trials where romosozumab was administered before (ARCH, FRAME) or following (STRUCTURE, Phase 2 extension) an antiresorptive (alendronate or denosumab, respectively). Methods: We evaluated BMD percentage change for total hip (TH) and lumbar spine (LS) and response rates (BMD gains ≥ 3% and ≥ 6%) at years 1 and 2 (except STRUCTURE with only 1-year data available). Results: With 1-year romosozumab initial therapy in ARCH and FRAME, TH BMD increased 6.2% and 6.0%, and LS BMD increased 13.7% and 13.1%, respectively. When romosozumab was administered for 1 year after alendronate (STRUCTURE) or denosumab (Phase 2 extension), TH BMD increased 2.9% and 0.9%, respectively, and LS BMD increased 9.8% and 5.3%, respectively. Over 2 years, TH and LS BMD increased 7.1% and 15.2% with romosozumab/alendronate, 8.5% and 16.6% with romosozumab/denosumab, and 3.8% and 11.5% with denosumab/romosozumab, respectively. A greater proportion of patients achieved BMD gains ≥ 6% when romosozumab was used first, particularly for TH, versus the reverse sequence (69% after romosozumab/denosumab; 15% after denosumab/romosozumab). Conclusion: In this study, larger mean BMD increases and greater BMD responder rates were achieved when romosozumab was used before, versus after, an antiresorptive agent. Since BMD on treatment is a strong surrogate for bone strength and fracture risk, this analysis supports the thesis that initial treatment with romosozumab followed by an antiresorptive will result in greater efficacy versus the reverse sequence.
3. Simultaneous chirality separation of amino acids and their derivative by natamycin based on mobility measurements
Yiyi Liu, Fangling Wu, Jiabin Wang, Ling Pu, Chuan-Fan Ding Anal Chim Acta. 2022 Sep 22;1227:340298. doi: 10.1016/j.aca.2022.340298. Epub 2022 Aug 22.
The separation of chiral amino acids (AAs) and their derivatives has always been a research difficulty in the field of biochemistry due to the high similarity of enantiomeric structures. In this work, a simple and quick method using natamycin (Nat) as chiral selector has been developed to simultaneously separate chiral AAs and their derivatives of carbobenzoxy/benzyl-AAs (Cbz/Bzl-AAs) by trapped ion mobility spectrometry-mass spectrometry (TIMS-MS). Specifically, 12 groups of the Cbz-AAs and Bzl-AAs can get baseline mobility separation by simple mixing with Nat to form binary diastereomeric complex ions [Nat+(Cbz-D/L-AA)+H]+ and [Nat+(Bzl-D/L-AA)+H]+. While for the remained 5 groups of Bzl-D/L-AAs and 16 groups of D/L-AAs with unsatisfying separation, by further adding P-toluenesulfonic acid (PTS), the formed ternary complexes can allow their baseline chiral separation. Specifically, Bzl-D-AAs and Bzl-L-AAs get much improved separation effect by the formed diastereomeric complexes of [Nat+(Bzl-AA)2+PTS2+H]+, which the Rp-p was improved from 0 to 2.40; while the D/L-AAs can get baseline separation by the formed diastereomeric complexes of [Nat + AA + PTS + H]+, [Nat + AA+(PTS)2+H]+, and [Nat+(AA)2+(PTS)2+H]+, with the Rp-p ranged from 0.44 to 3.53. Definitely, PTS is the first time reported as the ligand to improve the separation effect for the enantiomers, and with the higher assembly of chiral analyte, Nat, and PTS might enable better chiral separation for the chiral amino acid and their derivatives. Moreover, method validation of relative quantification and accuracy for the D/L-AA and their derivatives were measured in a mixture, yielding R2 greater than 0.99 and RSD% ≤ 2.68%. Overall, Nat and PTS as chiral selector and ligand can be widely used for chiral AAs and their derivatives mobility separation, and potentially for the separation of other AA-related chiral molecules.
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