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. Author manuscript; available in PMC: 2017 Feb 15.
Published in final edited form as: Tetrahedron Asymmetry. 2016 Feb 15;27(2-3):91–100. doi: 10.1016/j.tetasy.2015.12.002
graphic file with name nihms751427t28.jpg ee = 99%

[α]D22 = − 62 (c 0.2, CHC13)

Source of chirality: Asymmetric synthesis

Absolute configuration: (R)
graphic file with name nihms751427t29.jpg ee = 99%

[α]D22 = −68 (c 0.2, CHCl3)

Source of chirality: Asymmetric synthesis

Absolute configuration: (R)
graphic file with name nihms751427t30.jpg ee = 99%

[α]D22 =−62(c 0.15, CHCl3)

Source of chirality: Asymmetric synthesis

Absolute config+uration: (R)
graphic file with name nihms751427t31.jpg ee = 99%

[α]D22 =− 51 (c 0.6, CHCl3)

Source of chirality: Asymmetric synthesis

Absolute configuration: (R)
graphic file with name nihms751427t32.jpg ee = 99%

[α]D22 = − 50 (c 0.09, CHCl3)

Source of chirality: Asymmetric synthesis

Absolute configuration: (R)
graphic file with name nihms751427t33.jpg ee = 99%

[α]D22 = − 39 (c 0.09, CHC13)

Source of chirality: Asymmetric synthesis

Absolute configuration: (R)
graphic file with name nihms751427t34.jpg ee = 99%

[α]D22 = − 58 (c 0.3, CHCl3)

Source of chirality: Asymmetric synthesis

Absolute configuration: (R)
graphic file with name nihms751427t35.jpg ee = 99%

[α]D18 = + 38(c 0.43, CHCl3)

Source of chirality: Asymmetric synthesis

Absolute configuration: (R)
graphic file with name nihms751427t36.jpg ee = 95%

[α]D20 =−40(c 1.0, CHCl3)

Source of chirality: Asymmetric synthesis

Absolute configuration: (R)
graphic file with name nihms751427t37.jpg ee = 96%

[α]D20 =+19(c 4.1, MeOH)

Source of chirality: Asymmetric synthesis

Absolute configuration: (S)