Reaction Steps
To a solution of 3,7,11,15,19,23,27,31,35,39-decamethyl-2,6,10,14,18,26,30,34,38-tetracontanonaen-22-on-1-ol (6.8 g) in pyridine (1 g), acetic anhydride (3.5 g) is added, and the resultant mixture is allowed to stand at room temperature for 6 hours. The reaction mixture is treated as in Example 7 (5) (a) to give 1-acetoxy-3,7,11,15,19,23,27,31,35,39-decamethyl-2,6,10,14,18,26,30,34,38-tetracontanonaen-22-one (6.2 g), which is then similarly reduced. The resultant product (4.7 g) is treated as in Example 1 (5) (a) to give 1-acetoxy-3,7,11,15,19,23,27,31,35,39-decamethyl-2,6,10,14,18,26,30,34,38-tetracontanonaen-22ol (1.9 g) as a fraction (1) and 3,7,11,15,19,23,27,31,35,39-decamethyl-2,6,10,14,18,26,30,34,38-tetracontanonaene-1,22-diol (0.8 g) as a fraction (2). The latter is treated with acetic anhydride as above to give 1-acetoxy-3,7,11,15,19,23,27,31,35,39-decamethyl-2,6,10,14,18,26,30,34,38-tetracontanonaen-22-ol (0.73 g).
