632334-57-7 Purity
96%
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Specification
The synthesis steps of conventional lenalidomide are shown in Scheme 1, including four steps, with a yield of approximately 51%.
An alternative preparation method (Scheme 2) greatly simplifies the synthesis of lenalidomide and enables it to be obtained in a higher yield (59.8%). The preparation procedure starting from 2-(Bromomethyl)-3-nitrobenzoic acid includes:
· Condensation of 2-(Bromomethyl)-3-nitrobenzoic acid (III) with 3-aminopiperidine-2,6-dione (VI) at room temperature in DMF in the presence of NEt3 gave V. The yield of V under the selected reaction conditions was 86%.
· Compound I was obtained by hydrogenation of V using palladium hydroxide. Use of palladium hydroxide instead of Pd on C enabled the reaction to be carried out at atmospheric pressure and the yield of the hydrogenation step to be increased to 79%. Thus, the overall yield of I for the whole scheme was 59.8%; the purity, 99.6% (by HPLC).
The molecular formula of 2-(bromomethyl)-3-nitrobenzoic acid is C8H6BrNO4.
The IUPAC name of 2-(bromomethyl)-3-nitrobenzoic acid is 2-(bromomethyl)-3-nitrobenzoic acid.
The InChIKey of 2-(bromomethyl)-3-nitrobenzoic acid is WNTCNOMUJRQWGP-UHFFFAOYSA-N.
The molecular weight of 2-(bromomethyl)-3-nitrobenzoic acid is 260.04 g/mol.
2-(bromomethyl)-3-nitrobenzoic acid has 1 hydrogen bond donor count.
The topological polar surface area of 2-(bromomethyl)-3-nitrobenzoic acid is 83.1Ų.
2-(bromomethyl)-3-nitrobenzoic acid has 14 heavy atoms.
Yes, 2-(bromomethyl)-3-nitrobenzoic acid is considered a canonical compound.
The XLogP3-AA value of 2-(bromomethyl)-3-nitrobenzoic acid is 1.8.
The CAS number of 2-(bromomethyl)-3-nitrobenzoic acid is 632340-56-8.