Gibberellin A4+7 (GA4:GA7=65:35) synthesis

Yield:668-44-0 95%

Reaction Conditions:

with sulfuric acid;nitric acid at 55; for 1 h;

References:

Fox, Brian M.;Sugimoto, Kazuyuki;Iio, Kiyosei;Yoshida, Atsuhito;Zhang, Jian;Li, Kexue;Hao, Xiaolin;Labelle, Marc;Smith, Marie-Louise;Rubenstein, Steven M.;Ye, Guosen;McMinn, Dustin;Jackson, Simon;Choi, Rebekah;Shan, Bei;Ma, Ji;Miao, Shichang;Matsui, Takuya;Ogawa, Nobuya;Suzuki, Masahiro;Kobayashi, Akio;Ozeki, Hidekazu;Okuma, Chihiro;Ishii, Yukihito;Tomimoto, Daisuke;Furakawa, Noboru;Tanaka, Masahiro;Matsushita, Mutsuyoshi;Takahashi, Mitsuru;Inaba, Takashi;Sagawa, Shoichi;Kayser, Frank [Journal of Medicinal Chemistry,2014,vol. 57,# 8,p. 3464 - 3483] Location in patent:supporting information