Name | N-[(9H-fluoren-9-ylmethoxy)carbonyl]-L-alanine |
Synonyms | FMOC-Ala-OH Fmoc-L-alanine Fmoc-DL-Alanine N-ALPHA-FMOC-L-ALA L-Alanine-2-13C-N-FMOC N-ALPHA-FMOC-L-ALANINE N-[(9H-fluoren-9-ylmethoxy)carbonyl]alanine N-ALPHA-(9-FLUORENYLMETHOXYCARBONYL)-L-ALANINE N-[(9H-fluoren-9-ylmethoxy)carbonyl]-L-alanine N-ALPHA-(9-FLUORENYLMETHYLOXYCARBONYL)-L-ALANINE (2S)-2-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}propanoate |
CAS | 35661-39-3 |
EINECS | 252-660-6 |
InChI | InChI=1/C18H17NO4/c1-11(17(20)21)19-18(22)23-10-16-14-8-4-2-6-12(14)13-7-3-5-9-15(13)16/h2-9,11,16H,10H2,1H3,(H,19,22)(H,20,21)/p-1/t11-/m0/s1 |
InChIKey | QWXZOFZKSQXPDC-NSHDSACASA-N |
Molecular Formula | C18H17NO4 |
Molar Mass | 311.33 |
Density | 1.2626 (rough estimate) |
Melting Point | 147-153 °C (lit.) |
Boling Point | 451.38°C (rough estimate) |
Specific Rotation(α) | -19 º (c=1,DMF) |
Flash Point | 282.9°C |
Water Solubility | Soluble in water. |
Solubility | DMSO (Slightly), DMF (Sparingly), Methanol (Slightly) |
Vapor Presure | 1.13E-12mmHg at 25°C |
Appearance | White solid |
Color | White |
BRN | 2225975 |
pKa | 3.91±0.10(Predicted) |
Storage Condition | Store below +30°C. |
Refractive Index | -18.5 ° (C=1, DMF) |
MDL | MFCD00037139 |
Hazard Symbols | Xi - Irritant![]() |
Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
Safety Description | S24/25 - Avoid contact with skin and eyes. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S27 - Take off immediately all contaminated clothing. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
WGK Germany | 3 |
HS Code | 29242990 |
Hazard Class | IRRITANT |
introduction | N-fluorene methoxycarbonyl-L-alanine is also called (S)-2-((((9H-fluoren-9-yl) methoxy) carbonyl) amino) propionic acid, which is an amino acid derivative, it can be obtained by L-alanine protected by Fmoc. There are reports that it can be used to prepare an aromatic heterocyclic derivative (S)-5-(1-aminoethyl)-2-(3-(cyclopropyl methoxy)-4-methoxyphenyl)-N- (2, 4-difluorobenzyl) thiazol-4-formamide hydrochloride, the pharmaceutical composition containing the compound has a good affinity for PDE4, especially for chronic respiratory obstruction, it has a good therapeutic effect. |
preparation | Na2CO3(29.8g,280.9mmol) and 9-fluorene methyl-N-succinimide carbonate (28.4g,84.27mmol) were added to L-alanine (5g,56.18mmol) of water/dioxane (v/v = 1/1,400mL) solution, stirring at room temperature for 18h, filtering, Et2O extraction (100mL × 3), water phase acidification with concentrated hydrochloric acid, ethyl acetate extraction (150mL × 3), combining organic phase, drying with Na2SO4, concentration, 17.3g white solid, yield: 99%. |