2-((2E,6E)-(R)-7-Iodo-4,6-dimethyl-hepta-2,6-dienyloxy)-tetrahydro-pyran 、 (2S,4S,6S,9S)-4-(tert-Butyl-diphenyl-silanyloxy)-8,9-dimethyl-1,7-dioxa-spiro[5.5]undecane-2-carbaldehyde 在
叔丁基锂 作用下,
以
四氢呋喃 为溶剂,
生成 (2E,6E)-(R)-1-[(2S,4S,6S,8S,9S)-4-(tert-Butyl-diphenyl-silanyloxy)-8,9-dimethyl-1,7-dioxa-spiro[5.5]undec-2-yl]-3,5-dimethyl-8-(tetrahydro-pyran-2-yloxy)-octa-2,6-dien-1-ol 、 (2E,6E)-(R)-1-[(2S,4S,6S,8S,9S)-4-(tert-Butyl-diphenyl-silanyloxy)-8,9-dimethyl-1,7-dioxa-spiro[5.5]undec-2-yl]-3,5-dimethyl-8-(tetrahydro-pyran-2-yloxy)-octa-2,6-dien-1-ol