Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
METHOD FOR PRODUCING SULFONATE
Document Type and Number:
WIPO Patent Application WO/2013/094546
Kind Code:
A1
Abstract:
A sulfonate represented by formula (7) that is useful as a precursor for a chemotherapeutic drug can be produced by a method for producing the sulfonate represented by formula (7), the method including a step for reacting a sulfonic acid ester represented by formula (6) (where R1 represents a C4-C6 branched alkyl group) with sodium iodide or sodium hydroxide to obtain the sulfonate represented by formula (7).

Inventors:
TANAKA YOHEI (JP)
YASUOKA JUNICHI (JP)
AIKAWA TOSHIAKI (JP)
IKEMOTO TETSUYA (JP)
Application Number:
PCT/JP2012/082588
Publication Date:
June 27, 2013
Filing Date:
December 10, 2012
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
C07D317/24; C07C309/65; C07C309/71
Domestic Patent References:
WO2011009541A12011-01-27
WO2010145197A12010-12-23
WO2009018238A12009-02-05
WO2011009541A12011-01-27
Other References:
ADAMCZYK,M. ET AL.: "w-Aminooxyalkanesulfonic acids.", NOVEL NUCLEOPHILIC SULFOALKYLATION REAGENTS, TETRAHEDRON LETTERS, vol. 42, no. 26, 2001, pages 4285 - 4287, XP055151039
TRUCE,W.E. ET AL.: "trans-1-(Arylsulfonyl)-2- arylcyclopropanes and derivatives of cyclopropanesulfonic acid", JOURNAL OF ORGANIC CHEMISTRY, vol. 34, no. LL, 1969, pages 3324 - 3328, XP002678923
See also references of EP 2796455A4
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
Nakayama δΊ¨ (JP)
Download PDF:
Claims: