Hydrochloric Acid → HCID 136347318, compound

HRID 601194Notes

Reaction equation

[O:1]=[S:2]1(=[O:32])[C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=2[NH:5][C:4]([C:12]2[C:13](=[O:31])[N:14]([N:23]=[C:24]([C:26]3[CH:30]=[CH:29][S:28][CH:27]=3)[CH3:25])[C:15]3[C:20]([C:21]=2[OH:22])=[CH:19][CH:18]=[CH:17][CH:16]=3)=[N:3]1.CO.[BH4-].[Li+].Cl>O1CCCC1.O>[O:32]=[S:2]1(=[O:1])[C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=2[NH:5][C:4]([C:12]2[C:13](=[O:31])[N:14]([NH:23][CH:24]([C:26]3[CH:30]=[CH:29][S:28][CH:27]=3)[CH3:25])[C:15]3[C:20]([C:21]=2[OH:22])=[CH:19][CH:18]=[CH:17][CH:16]=3)=[N:3]1

Participants

Conditions

Temperature: 25 °C

Procedure

The product of Example 244A (0.070 g, 0.15 mmol) in tetrahydrofuran (2.0 mL) and methanol (0.015 mL, 0.42 mmol) at 0° C. was treated with dropwise addition of a 2.0M solution of lithium borohydride in tetrahydrofuran (0.090 mL, 0.18 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, and the resulting precipitate was collected by filtration and dried. The crude product was chromatographed on silica gel with dichloromethane 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 1.26 (m, 3 H) 4.58 (m, 1 H) 5.74 (s, 1 H) 7.07 (m, 1 H) 7.18 (m, 1 H) 7.28 (m, 3 H) 7.37 (s, 1 H) 7.55 (m, 2 H) 7.66 (m, 1 H) 7.96 (d, J=6.62 Hz, 1 H) 8.07 (s, 1 H) 16.30 (s, 1 H). MS (ESI−) m/z 465 (M−H)−.

Workup

filtrationthe resulting precipitate was collected by filtration
customdried
customThe crude product was chromatographed on silica gel with dichloromethane

Sources & evidence

ORD record: ord-6b5310276e774aaca6feb158f2ce56cd
Source dataset: uspto-grants-2011_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07902203B2

Reaction notes

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