... Volume: Page: ... The acidic hydration of 14 with p-TsOH·H 2 O in THF–H 2 O (1:1, v/v) afforded 15 in 92% yield ... in chemical shift values (Δδ C ) of 0.3–1.2 ppm in comparison with those reported for 5. The specific rotation of 15 was determined to be [α] 18 D −167.2 ...