Table 1 The chemical data of fr 14

1

C₁₅H₂₀O₃

Tessaric acid or pterodonoic acid

[26, 27]

2

C₁₅H₂₄O₃

Isomer of ilicic acid

[12]

3

C₁₅H₂₀O₃

Tessaric acid or pterodonoic acid

[26, 27]

4

C₁₅H₂₂O₃

2α-Hydroxypterodontic acid;

or 1β-Hydroxypterodontic acid;

or 3β-Hydroxypterodontic acid;

or 5α-Hydroxylcostic acid;

or 5β-Hydroxylcostic acid

[26, 28, 29]

5

C₁₅H₂₄O₃

Ilicic acid

[12]