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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1687530Generated: November 2, 2026

2-Nitro-8,9-dihydro-5H-benzo[7]annulen-7(6H)-one → (1S,2S,3R,4R)-3-[5-Chloro-2-(7-hydroxy-6,7,8,9-tetrahydro-5H-benzocyclohepten-2-ylamino)-pyrimidin-4-ylamino]-bicyclo[2.2.1]hept-5-ene-2-carboxylic acid amide

https://huagongshe.com/reaction/1687530

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Nitro-8,9-dihydro-5H-benzo[7]annulen-7(6H)-oneHCID 45790319—
ReactantHCID 57522618HCID 57522618—
Reactant2-Amino-6,7,8,9-tetrahydro-5H-benzocyclohepten-7-olHCID 67263503—
Reactant(2,5-Dichloro-pyrimidin-4-yl)-[2-(1-methyl-1H-imidazol-2-yl)-phenyl]-amineHCID 86633891—
Product(1S,2S,3R,4R)-3-[5-Chloro-2-(7-hydroxy-6,7,8,9-tetrahydro-5H-benzocyclohepten-2-ylamino)-pyrimidin-4-ylamino]-bicyclo[2.2.1]hept-5-ene-2-carboxylic acid amideHCID 67264345—

Reaction Steps

Prepared analogously to Example 216d replacing 3-Ethyl-2,3,4,5-tetrahydro-1H-benzo[d]azepin-7-ylamine with 2-Amino-6,7,8,9-tetrahydro-5H-benzocyclohepten-7-ol and (2,5-Dichloro-pyrimidin-4-yl)-[2-(1-methyl-1H-imidazol-2-yl)-phenyl]-amine was replaced with (1S,2S,3R,4R)-3-(2,5-Dichloro-pyrimidin-4-ylamino)-bicyclo[2.2.1]hept-5-ene-2-carboxylic acid amide. 2-Amino-6,7,8,9-tetrahydro-5H-benzocyclohepten-7-ol is a byproduct from the reductive amination of 2-Nitro-5,6,8,9-tetrahydro-benzocyclohepten-7-one with various amines. The reaction was carried out in the presence of the desired reductive amination product to provide a crude mixture of amino and alcohol products. The crude mix was then reduced and a mixture of amino and alcohol products were used in the synthesis of target compounds. The mixture was then purified by prep HPLC to afford the desired amino compound as well as (1S,2S,3R,4R)-3-[5-Chloro-2-(7-hydroxy-6,7,8,9-tetrahydro-5H-benzocyclohepten-2-ylamino)-pyrimidin-4-ylamino]-bicyclo[2.2.1]hept-5-ene-2-carboxylic acid amide. LC/MS (ESI): 440.22. 1H NMR (400 MHz, DMSO, d6) δ 9.12 (s, 1H), 7.93 (s, 1H), 7.78 (s, 1H), 7.69 (m, 1H), 7.46 (m, 2H), 7.26 (s, 1H), 6.97 (d, 1H, J=8.08 Hz), 6.35 (m, 1H), 6.27 (m, 1H), 4.58 (m, 1H), 4.15 (m, 1H), 3.72 (m, 1H), 3.31 (s, 2H), 2.88 (s, 1H), 2.78 (m, 3H), 2.11 (d, 1H, J=8.59 Hz), 1.89 (m, 2H), 1.41 (d, 1H, J=8.09 Hz), 1.33 (m, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08148391B2
Source datasetuspto-grants-2012_04
ORD IDord-edf1df14719d41a080f295c24181bd1c
Source noteuspto-grants-2012_04