3.beta.,20.alpha.-Yohimban-16.beta.-carboxylic acid, 11,17.alpha.-dimethoxy-18.beta.-[(tetrahydro-2H-pyran-2-yl)oxy]-, methyl ester 3.beta.,20.alpha.-Yohimban-16.beta.-carboxylic acid, 11.alpha.,17.alpha.-dimethoxy-18.beta.-(tetrahydro-2-pyranyloxy)-, methyl ester 3.beta.,20.alpha.-Yohimban-16.beta.-carboxylic acid, 18.beta.-[(tetrahydro-2H-pyran-2-yl)oxy]-11,17.alpha.-dimethoxy-, methyl ester 751-73-5 Methyl (tetrahydro-2-pyranyl)reserpate Methyl tetrahydropyranylreserpate NSC169861 Su 7064 WLN: T F6 D5 C666 EM ON&&TTTJ HO1 TO1 UVO1 SO- BT6OTJ Yohimban-16-carboxylic acid, 11,17-dimethoxy-18-[(tetrahydro-2H-pyran-2-yl)oxy]-, methyl ester, (3.beta.,16.beta.,17.alpha.,18.beta.,20.alpha.)-