Cumulative Data of ¹H and ¹³C NMR Signals and Specific Rotations of Eremophilane Sesquiterpenoids. 2. Bicyclic Eremophilanes (2)

Abstract

1H and 13C NMR signals and specific rotations of eremophilane sesquiterpenoids are cumulated as a series of review articles. In the second chapter of this review, 124 bicyclic eremophilanes without furan or lactone rings (except for epoxides) and with 3-OR functionality (some have OH) are listed in 25 tables. Those bearing long chain acyloxy groups without 3-oxygen functions and some bi- or tri-cyclic compounds are also included in this chapter. These data may help chemists working in the area of natural products chemistry as well as synthetic scientists.

Cumulative Data of 1H and 13C NMR Signals and Specific Rotations of Eremophilane Sesquiterpenoids. 3. 10H-Furanoeremophilanes Without 3-O Functionality

“…The numbering for C-14 and C-15 was adjusted to our system. [1][2][3] The detailed J values of the oxymethine proton at C-1 of compound 3 resonating at δ 3.88 were not shown. 8 Table 2 shows the data of 6-epi-ligularol (4) (Figure 1), which exists in nature.…”

“…The data of 10αH-furanoeremophilane (1), 3 10βH-furanoeremophilane (2), and furanoeremophilan-1α-ol (3) (Figure 1) are listed in Table 1. Both 10αH-and 10βH-furanoeremophilanes are known and five reports are found for compound 2.…”

“…As a continuation of a series of reviews, 1,2 data of 143 furanoeremophilane sesquiterpenoids are listed in Tables 1 to 33. In this article, furanoeremophilanes bearing 10H without C-3 oxygen functionality are presented.…”

Cumulative Data of 1H and 13C NMR Signals and Specific Rotations of Eremophilane Sesquiterpenoids. 4. 10H-3-O-Furanoeremophilanes

“…Isolation of numerous eremophilane-type sesquiterpenoids has been reported, and the number of compounds continues to increase. As a part of an ongoing series of reviews, [1][2][3] data of 175 furanoeremophilane sesquiterpenoids are listed in Tables 1-38. This chapter focuses on furanoeremophilanes bearing 10H with C-3 oxygen functionality.…”