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Most Cited Patent Families 2001-Chemistry and Related

Following is a CAS database record representing a highly cited patent family.

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CAS indexed 31 chemical substances from this document. CAS subject entries for this document include: Sulfoxides.

CAPLUS COPYRIGHT 2002 ACS

TITLE:	Preparation of unsymmetrical heterocyclylsulfoxide enantiomers
INVENTOR(S):	Larsson, Erik Magnus; Stenhede, Urban Jan; Soerensen, Henrik; Von Unge, Per Oskar Sverker; Cotton, Hanna Kristina
PATENT ASSIGNEE(S):	Astra Aktiebolag, Swed.
SOURCE:	PCT Int. Appl., 67 pp. CODEN: PIXXD2
LANGUAGE:	English

PATENT INFORMATION:

PATENT NO.       KIND  DATE           APPLICATION NO.  DATE
---------------  ----  --------       ---------------  --------
WO 9602535        A1   19960201       WO 1995-SE818    19950703
	 W:  AM, AT, AU, BB, BG, BR, BY, CA, CH, CN, CZ, DE, DK, EE, ES, FI,
	     GB, GE, HU, IS, JP, KE, KG, KP, KR, KZ, LK, LR, LT, LU, LV, MD,
	     MG, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ,
	     TM, TT
	 RW: KE, MW, SD, SZ, UG, AT, BE, CH, DE, DK, ES, FR, GB, GR, IE, IT,
	     LU, MC, NL, PT, SE, BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE,
	     SN, TD, TG
SE 9402510        A    19960116       SE 1994-2510     19940715
SE 504459         C2   19970217
RU 2157806        C2   20001020       RU 1997-102162   19950703
CA 2193994        AA   19960201       CA 1995-2193994  19950705
AU 9529948        A1   19960216       AU 1995-29948    19950705
AU 688074         B2   19980305
EP 773940         A1   19970521       EP 1995-926068   19950705
    R:  AT, BE, CH, DE, DK, ES, FR, GB, GR, IE, IT, LI, LU, MC, NL, PT, SE
CN 1157614        A    19970820       CN 1995-194956   19950705
CN 1070489        B    20010905
HU 76642          A2   19971028       HU 1997-108      19950705
BR 9508292        A    19971223       BR 1995-8292     19950705
JP 10504290       T2   19980428       JP 1995-504938   19950705
ZA 9505724        A    19960115       ZA 1995-5724     19950710
US 5948789        A    19990907       US 1995-492087   19950714
FI 9700102        A    19970110       FI 1997-102      19970110
NO 9700153        A    19970114       NO 1997-153      19970114

ABSTRACT:
Enantiomeric R1ZSOR2 [R1 = (un)substituted 2-pyridyl, (un)substituted 2-(R4R5N)C6H4; R2 = (un)substituted 2-benzimidazolyl, thieno[3,4-d]imidazol-2-yl, etc.; R4,R5 = H, (ar)alkyl; Z = CH2, (un)substituted 1,2-phenylene, etc.] were prepd. by oxidn. of prochiral R1ZSR2 in the presence of a chiral Ti complex and a base.

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