2-Amino-2-methyl-1,3-propanediol → (1aR,5aR)-2-(4-Cyano-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic Acid (2-Hydroxy-1-hydroxymethyl-1-methyl-ethyl)-amide

HRID 1623989Notes

Reaction equation

[C:1]([C:3]1[CH:8]=[CH:7][N:6]=[C:5]([N:9]2[C:16]3[C@@H:15]4[CH2:17][C@@H:14]4[CH2:13][C:12]=3[C:11]([C:18](O)=[O:19])=[N:10]2)[CH:4]=1)#[N:2].[NH2:21][C:22]([CH3:27])([CH2:25][OH:26])[CH2:23][OH:24].C(N(CC)CC)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>CN(C=O)C>[OH:24][CH2:23][C:22]([NH:21][C:18]([C:11]1[C:12]2[CH2:13][C@H:14]3[CH2:17][C@H:15]3[C:16]=2[N:9]([C:5]2[CH:4]=[C:3]([C:1]#[N:2])[CH:8]=[CH:7][N:6]=2)[N:10]=1)=[O:19])([CH2:25][OH:26])[CH3:27]

Participants

Conditions

Temperature: 23 °C

Procedure

To a solution of (1aR,5aR)-2-(4-cyano-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (100 mg, 0.376 mmol), 2-amino-2-methylpropane-1,3-diol (39.5 mg, 0.376 mmol), and triethylamine (0.105 mL, 0.751 mmol) in DMF (2 mL) was added HATU (157 mg, 0.413 mmol). The reaction was stirred at 23° C., for 30 min then concentrated. The residue was purified by silica gel flash column chromatography to give the title compound (125 mg) as a white solid. LCMS m/z=354.3 [M+H]+; 1H NMR (400 MHz, CDCl3) δ 0.46 (td, J=4.7, 3.3 Hz, 1H), 1.27 (td, J=8.0, 4.9 Hz, 1H), 1.36 (s, 3H), 2.27-2.33 (m, 1H), 2.78-2.89 (m, 2H), 3.00 (dd, J=16.8, 6.4 Hz, 1H), 3.72-3.77 (m, 4H), 3.87-3.94 (m, 2H), 7.23 (m, 1H), 7.42 (dd, J=5.1, 1.0 Hz, 1H), 8.16-8.17 (m, 1H), 8.62 (d, J=5.1 Hz, 1H).

Workup

concentrationthen concentrated
customThe residue was purified by silica gel flash column chromatography

Sources & evidence

ORD record: ord-dfb842520a68401abaa5209ead2ee93b
Source dataset: uspto-grants-2014_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08778950B2

Reaction notes

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