Table 1 The MS data of compounds 1–4.

From: Rhodoterpenoids A‒C, Three New Rearranged Triterpenoids from Rhododendron latoucheae by HPLC‒MS‒SPE‒NMR

compounds

molecular formula

HRSIMS data (m/z)

calc for

unsaturation degrees

1

C30H48O4

495.3438 [M + Na]+

495.3445

7

2

C30H46O5

487.3428 [M + H]+

487.3418

8

3

C30H44O5

507.3081 [M + Na]+

507.3081

9

4

C30H44O3

453.3357 [M + H]+

453.3363

9

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