Hydrochloric Acid → HCID 136373721, compound

HRID 601223Notes

Reaction equation

[O:1]=[S:2]1(=[O:28])[C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=2[NH:5][C:4]([C:12]2[C:17](=[O:18])[N:16]([N:19]=[CH:20][CH:21]([CH3:23])C)[C:15]3[CH:24]=[CH:25][S:26][C:14]=3[C:13]=2[OH:27])=[N:3]1.[CH3:29]O.[BH4-].[Li+].Cl>O1CCCC1.O>[CH2:20]([NH:19][N:16]1[C:17](=[O:18])[C:12]([C:4]2[NH:5][C:6]3[CH:11]=[CH:10][CH:9]=[CH:8][C:7]=3[S:2](=[O:1])(=[O:28])[N:3]=2)=[C:13]([OH:27])[C:14]2[S:26][CH:25]=[CH:24][C:15]1=2)[CH2:21][CH2:23][CH3:29]

Participants

Conditions

Temperature: 25 °C

Procedure

The product of Example 269A (0.075 g, 0.18 mmol) in tetrahydrofuran (4 mL) and methanol (0.029 mL, 0.5 mmol) at 0° C. was treated dropwise with a 2.0M solution of lithium borohydride in tetrahydrofuran (0.150 mL, 0.3 mmol). The reaction was stirred at 25° C. for 1 hour, acidified with 1M hydrochloric acid to a pH of approximately 2-4, diluted with water (15 mL), and the resulting precipitate was collected by filtration and dried. The crude product was chromatographed on silica gel with 2% methanol in chloroform to give the title compound. The sodium salt of the title compound was prepared according to the procedure of Example 1D. 1H NMR (300 MHz, DMSO-d6) δ ppm 0.90 (t, J=7.17 Hz, 3 H) 1.39 (dd, J=15.08, 7.35 Hz, 2 H) 1.50 (m, 2 H) 3.02 (t, J=6.43 Hz, 2 H) 6.65 (s, 1 H) 7.43 (d, J=5.15 Hz, 1 H) 7.55 (t, J=7.72 Hz, 1 H) 7.64 (d, J=8.09 Hz, 1 H) 7.77 (t, J=7.72 Hz, 1 H) 7.92 (d, J=8.09 Hz, 1 H) 8.34 (d, J=5.15 Hz, 1 H) 14.21 (s, 1 H) 14.83 (s, 1 H). MS (ESI−)m/z 417 (M−H)−.

Workup

filtrationthe resulting precipitate was collected by filtration
customdried
customThe crude product was chromatographed on silica gel with 2% methanol in chloroform

Sources & evidence

ORD record: ord-6b578994e89147df83fc497f07b2ec5f
Source dataset: uspto-grants-2011_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07902203B2

Reaction notes

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