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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1041225Generated: 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/1041225

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 numberUS08552186B2
Source datasetuspto-grants-2013_10
ORD IDord-95bf4c12593b413fa7657648e7992883
Source noteuspto-grants-2013_10