Table 3 Aqueous solubility data of PCT-derived sodium phosphonates at pH 8.0…8.5.

From: Synthesis and preliminary cytotoxicity evaluation of water soluble pentacyclic triterpenoid phosphonates

Compound number

Structural formula

Aqueous solubility (mg/mL) in D2O

at pH 8.0…8.5

7a

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11

7b

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8

7c

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26

8a

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3

8b

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7

8c

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7

12

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3